3046 . The average of two numbers is 62. If 2 is added to the smaller number, the ratio between the numbers becomes 1 :2 . The smaller number is -

A. 30
B. 40
C. 60
D. 84

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Answer: Option B

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Bangladesh Bank - Officer - 2015

A. z-x
B. (z+x)/2
C. 2z-x
D. none of these

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Answer: Option C

Explanation:

The average of x and another number is z.

Sum of x and the other number is = 2z

so, the other number must be = 2z - x

ans: 2z - x

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3048 . The average temperature for the first 4-days of a week is 40,2º C and that of the last 4-days is 41.3°C. If the average temperature for the whole week is 40.6° C, then temperature on the fourth day is -

A. 38.5 ° C
B. 41.8° C
C. 41.3°C
D. 40.8° C

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Answer: Option B

Explanation:

Temperature on the fourth day
= [(40.2 × 4 + 41.3 × 4) - (40.6 × 7)]° C
= 41.8° C

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বাংলাদেশ ব্যাংক অফিসার ০২ -১২-২০২২

A. 24°c
B. 21°c
C. 27°c
D. 30°c

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Answer: Option D

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3050 . The average wage of a worker during a fortnihgt comprising 15 consecutive working days was Taka 90 per day. During the first 7 days, his average wage was Taka 87 per day and the average wage during the last 7 days was Taka 92 per day. What was his wage on the 8th day ?

A. 83
B. 90
C. 92
D. 97

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Answer: Option D

Explanation:

15 দিনের কাজের মোট বেতন ( 15 × 90) = 1350 টাকা

১ম 7 দিন ও শেষ 7 দিনের কাজের মোট বেতন ( 7 × 87 + 7 × 92) = 609 + 644 = 1253 টাকা।

অষ্টম দিনের কাজের বেতন ( 1350 - 1253) টাকা = 97 টাকা

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3051 . The average weight for a group of 20 women is 130 pounds. If the average weight for 75% of these women was 140 pounds, what was the average weight in pounds for the rest of the women?

A. 100
B. 110
C. 120
D. 135

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Answer: Option A

Explanation:

Total weight of 20 women = 20 x 130 = 2600 pounds

Total weight of 75% of 20 = 15 women = 15 x 140 = 2100 pounds

Total weight of the rest 5 women = 2600 - 2100 = 500 pounds

Then, the average weight of these 5 women = 500/5 = 100 pounds.

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সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (10-11-2023)

A. 37
B. 35
C. 33
D. 32

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Answer: Option A

Explanation:

Total Weight = (33*3) kg = 99 kg

Let,

Two friends minimum weight = 31 kg and 31kg

So, third friend Maximum weight = (99 - 31 - 31)kg = 37 kg .

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Bangladesh Bank - Officer - 2001

A. 60
B. 70
C. 75
D. 80

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Answer: Option D

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3054 . The average weight of 8 people increases by 2.5 kg when a new person comes in place of one of them weighting 65 kg. What might be the weight of the new person?

A. 85 kg
B. 80 kg
C. 75 kg
D. Cannot be determined
E. None of these

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Answer: Option A

Explanation:

Let the average of 8 people be x kg

And the weight of the new person be y kg

Sum of 8 people weight is

⇒ 8 × x = 8x kg

When the person is replaced.

⇒ 8x + y - 65 = 8 × (x + 2.5)

⇒ 8x + y - 65 = 8x + 20

⇒ y = 65 + 20 = 85 kg

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3055 . The average weight of A, B and C is 45 kg. If the average weight of A and B is 40 kg and that of B and C is 43 kg, then the weight of B is .

A. 17 kg
B. 31 kg
C. 20 kg
D. None of these

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Answer: Option B

Explanation:

A, B ও C এর গড় ওজন = 45 কেজি

৩ জনের ওজনের যোগফল = (45x3) = 135 কেজি

A ও B এর গড় ওজন = 40 কেজি

A ও B এর ওজনের যোগফল = (40x2) = 80 কেজি

B ও C এর গড় ওজন = 43 কেজি

B ও C এর ওজনের যোগফল = (43x2) = 86 কেজি

A+B+B+C এর ওজনের যোগফল = (80+86) = 166 কেজি

বা,A+B+C+B=166

বা,135+B=166 (মান বসিয়ে পাই A+B+C=135)

বা,B=166-135

=31

সুতরাং, B এর ওজন = (166-135) = 31 কেজি |

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সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || অফিসার জেনারেল (10-03-2023)

A. 93.6 kg
B. 94 kg
C. 93.4 kg
D. 94.6 kg

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Answer: Option A

Explanation:

Total weight including teacher = 09.2x18 = 1623.6
Total weight of 17 students = 90x17 = 1530
So, the weight of teacher = 1623.6 - 1530 = 93.6 kg

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Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 6.25
B. 10
C. 12.5
D. 25

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Answer: Option D

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Dhaka Bank Ltd | Probationary Officer | 05-02-2021

A. 180 runs
B. 170 runs
C. 174 runs
D. 168 runs

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Answer: Option C

Explanation:

Let the lowest score in one innings be x. Then,
Highest score in an innings = x + 172
Total runs in 40 innings = 40 x 50 = 2000
Total runs in 38 innings = 38 x 48 = 1824
Given, 2000 - {x + (x + 172)} = 1824
⇒ 1828 - 2x = 1824 ⇒ 2x = 4 ⇒ x = 2
∴ Highest score = 172 + 2 = 174

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সিকিউরিটি প্রিন্টিং কর্পোরেশন বাংলাদেশ | সহকারী ব্যবস্থাপক- 26-11-2021

A. 78
B. 82.5
C. 58
D. 67.5

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Answer: Option A

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3060 . The breadth of a rectangular field is 5m. Its length is thrice the breadth. What is the total length of facing required to the if the fence is to be built leaving 0.5 m of space from each side ?

A. 56m
B. 70m
C. 44m
D. 38m

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Answer: Option C

Explanation:

Let's break down the problem step by step:

The breadth of the rectangular field is given as 5 meters.
The length is three times the breadth, which means the length is 3 * 5 = 15 meters.
Now, we need to calculate the total length of fencing required to enclose the field while leaving 0.5 meters of space from each side. This means the effective length and breadth of the field, including the space, will be increased by 0.5 meters on each side.

Effective breadth = 5 meters + 0.5 meters + 0.5 meters = 6 meters Effective length = 15 meters + 0.5 meters + 0.5 meters = 16 meters

Now, we can calculate the total length of fencing required, considering the effective length and breadth:

Total length of fencing = 2 * (Effective length + Effective breadth)

Total length of fencing = 2 * (16 meters + 6 meters)

Total length of fencing = 2 * 22 meters

Total length of fencing = 44 meters

So, the total length of fencing required to enclose the field while leaving 0.5 meters of space from each side is 44 meters.

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3046 . The average of two numbers is 62. If 2 is added to the smaller number, the ratio between the numbers becomes 1 :2 . The smaller number is -

3047 . The average of x and another number is z. the other number must be ----

3048 . The average temperature for the first 4-days of a week is 40,2º C and that of the last 4-days is 41.3°C. If the average temperature for the whole week is 40.6° C, then temperature on the fourth day is -

3049 . The average temperature on Wednesday,Thursday and Friday was 25°c. The average temperature on Thursday, Friday and Saturday was 24°c. If the temperature on saterday was 27°c, what was the temperature on Wednesday?

3050 . The average wage of a worker during a fortnihgt comprising 15 consecutive working days was Taka 90 per day. During the first 7 days, his average wage was Taka 87 per day and the average wage during the last 7 days was Taka 92 per day. What was his wage on the 8th day ?

3051 . The average weight for a group of 20 women is 130 pounds. If the average weight for 75% of these women was 140 pounds, what was the average weight in pounds for the rest of the women?

3052 . The average weight of 3 friends is 33 kg. None of the friends weights less than 31 kg . What can be the maximum weight of any three friends ?

3053 . The average weight of 6 persons of a group is 75 kg.If a person weighting 50 kg leaves the group, what will be the average weight of the group m?

3054 . The average weight of 8 people increases by 2.5 kg when a new person comes in place of one of them weighting 65 kg. What might be the weight of the new person?

3055 . The average weight of A, B and C is 45 kg. If the average weight of A and B is 40 kg and that of B and C is 43 kg, then the weight of B is .

3056 . The average weight of teacher is also included, then the average weight is increased by 200 grams. Find the weight of the teacher?

3057 . The base of a triangle is twice its height, which is 5cm. What is the area, in square centimeters, of the triangle?

3058 . The batting average for 40 innings of a cricket player is 50 runs. His highest score in an innings exceeds his lowest score by 172 runs. If these two innings are excluded, the average score of the remaining 38 innings is 48 runs. Find his highest score in

Let the lowest score in one innings be x. Then,
Highest score in an innings = x + 172
Total runs in 40 innings = 40 x 50 = 2000
Total runs in 38 innings = 38 x 48 = 1824
Given, 2000 - {x + (x + 172)} = 1824
⇒ 1828 - 2x = 1824 ⇒ 2x = 4 ⇒ x = 2
∴ Highest score = 172 + 2 = 174

3059 . The boys and girls in a college are ratios 3 : 2. If 20% of the boys and 25% of the girls are adults, the percentage of students who are not adults is--

3060 . The breadth of a rectangular field is 5m. Its length is thrice the breadth. What is the total length of facing required to the if the fence is to be built leaving 0.5 m of space from each side ?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক

3046 . The average of two numbers is 62. If 2 is added to the smaller number, the ratio between the numbers becomes 1 :2 . The smaller number is -

3047 . The average of x and another number is z. the other number must be ----

3048 . The average temperature for the first 4-days of a week is 40,2º C and that of the last 4-days is 41.3°C. If the average temperature for the whole week is 40.6° C, then temperature on the fourth day is -

3049 . The average temperature on Wednesday,Thursday and Friday was 25°c. The average temperature on Thursday, Friday and Saturday was 24°c. If the temperature on saterday was 27°c, what was the temperature on Wednesday?

3050 . The average wage of a worker during a fortnihgt comprising 15 consecutive working days was Taka 90 per day. During the first 7 days, his average wage was Taka 87 per day and the average wage during the last 7 days was Taka 92 per day. What was his wage on the 8th day ?

3051 . The average weight for a group of 20 women is 130 pounds. If the average weight for 75% of these women was 140 pounds, what was the average weight in pounds for the rest of the women?

3052 . The average weight of 3 friends is 33 kg. None of the friends weights less than 31 kg . What can be the maximum weight of any three friends ?

3053 . The average weight of 6 persons of a group is 75 kg.If a person weighting 50 kg leaves the group, what will be the average weight of the group m?

3054 . The average weight of 8 people increases by 2.5 kg when a new person comes in place of one of them weighting 65 kg. What might be the weight of the new person?

3055 . The average weight of A, B and C is 45 kg. If the average weight of A and B is 40 kg and that of B and C is 43 kg, then the weight of B is .

3056 . The average weight of teacher is also included, then the average weight is increased by 200 grams. Find the weight of the teacher?

3057 . The base of a triangle is twice its height, which is 5cm. What is the area, in square centimeters, of the triangle?

3058 . The batting average for 40 innings of a cricket player is 50 runs. His highest score in an innings exceeds his lowest score by 172 runs. If these two innings are excluded, the average score of the remaining 38 innings is 48 runs. Find his highest score in

Let the lowest score in one innings be x. Then, Highest score in an innings = x + 172 Total runs in 40 innings = 40 x 50 = 2000 Total runs in 38 innings = 38 x 48 = 1824 Given, 2000 - {x + (x + 172)} = 1824 ⇒ 1828 - 2x = 1824 ⇒ 2x = 4 ⇒ x = 2 ∴ Highest score = 172 + 2 = 174

3059 . The boys and girls in a college are ratios 3 : 2. If 20% of the boys and 25% of the girls are adults, the percentage of students who are not adults is--

3060 . The breadth of a rectangular field is 5m. Its length is thrice the breadth. What is the total length of facing required to the if the fence is to be built leaving 0.5 m of space from each side ?

Let the lowest score in one innings be x. Then,
Highest score in an innings = x + 172
Total runs in 40 innings = 40 x 50 = 2000
Total runs in 38 innings = 38 x 48 = 1824
Given, 2000 - {x + (x + 172)} = 1824
⇒ 1828 - 2x = 1824 ⇒ 2x = 4 ⇒ x = 2
∴ Highest score = 172 + 2 = 174