2986 . The average age of a group of 15 employees is 24 years. If 5 more employees join the group, the average age increases by 2 years. Find the average age of the new employees.

A. 35
B. 30
C. 24
D. 32

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Officer (Cash) -Sonali Bank | BD Development | BD Krishi Bank - 12.10.2018

A. 35years
B. 40years
C. 45years
D. 50years
E. None of these

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

3 years ago their average age was = 27 years

At present their average age = ( 27 + 3) = 30 years

At present the summation of their age = 30×3 = 90 years

Again,

5 years ago, the average age of child and wife was = 20 years

At present their average age = 20 + 5 = 25 years.

At present the summation of their age = 25×2 = 50 years

So, at present the husbands age = 90 - 50 = 40 years

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2988 . The average age of husband,wife and their child 3years ago was 27 years and that of wife and the child 5years ago was 20years.The present age of husband is :

A. 35years
B. 40years
C. 45years
D. 50years

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

The total of the present ages of husband, wife and child = 3 x 27 + 3 x 3 = 90 years

The total of the present ages of wife and child = 2 x 20 + 2 x 5 = 50 years

So, the present age of the husband = 90 - 50 = 40 years

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2989 . The average age of the 20 aspirants of a class is 19.2 years. After some time two more aspirants join them and then average is increased by 0.3 years. Find the difference between the age of new aspirants .

A. 12
B. 15
C. 18
D. None of these

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

A. 25 years
B. 30 years
C. 28 years
D. 32 years

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

মনে করি,

তিনজনের গড় বয়স ২৪

অতএব, ৩ জনের মোট বয়স ২৪*৩=৭২

দেওয়া আছে,

১ জনের বয়স ২১ বছর হলে, ২ জনের বয়স ২১*২=৪২

মনে করি,

১ জনের বয়স সর্বোচ্চ ক ববছর

প্রশ্নমতে,

২১*২+ক= ২৪*৩

বা, ৪২+ক=৭২

বা, ক=৭২-৪২

বা, ক =৩০

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2991 . The average age of three persons is 30 years. If the ratio of three ages is 3 : 5 : 7. What is the age of the youngest person?

A. 18 years
B. 8 years
C. 16 years
D. 42 years

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2992 . The average attendance of a college for the first three days of a week is 325 and first four days is 320. How many were present on the fourth day?

A. 300
B. 315
C. 305
D. 350

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

4th days attendance = (320×4 - 325×3)

= 1280 - 975 = 305

Ans.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

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

A. 1044
B. 2088
C. 720
D. 324

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Total cost of 5 apples & 4 mangoes = 324 tk

Total cost of 7 apples & 8 mangoes = 720 tk

( + ) Total cost of 12 apples & 12 mangoes = 1044 tk

Total cost of 24 apples & 12 mangoes = 1044 ×2 = 2088 tk

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Assistant Director - 2009

A. 1300
B. 1200
C. 1000
D. 800

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Hints:

১০ জন লোকের মোট মজুরি ( ১০×৪০০) টাকা = ৪০০০ টাকা

৩০০ টাকা করে ৯ জনের মজুরি = ( ৩০০×৯) = ২৭০০ টাকা

সম্ভাব্য সর্বোচ্চ মজুরি ( ৪০০০ - ২৭০০) টাকা = ১৩০০ টাকা।

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (সাধারণ) (20-01-2023)

A. 800
B. 1000
C. 1200
D. 1300

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Hints:

১০ জন লোকের মোট মজুরি ( ১০×৪০০) টাকা = ৪০০০ টাকা

৩০০ টাকা করে ৯ জনের মজুরি = ( ৩০০×৯) = ২৭০০ টাকা

সম্ভাব্য সর্বোচ্চ মজুরি ( ৪০০০ - ২৭০০) টাকা = ১৩০০ টাকা।

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

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

A. 3 : 2
B. 4 : 3
C. 7 : 5
D. None

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক | ২০.০৪.২০১৮

A. 50, 20
B. 30, 20
C. 20, 30
D. 60, 50

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

2998 . The average length of the sides of ∆ABC is 12. What is the perimeter at ∆ABC

A. 24
B. 36
C. 12
D. 8

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || অফিসার (জেনারেল) (08-03-2024)

2999 . The average length of the sides of ∆ABC is 12. What is the perimeter at ∆ABC?

A. 24
B. 36
C. 12
D. 18

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

3000 . The average monthly income of P and Q is Tk. 5050. The average monthly income of Q and R is Tk. 6250 and the average monthly income of P and R is Tk. 5200. The monthly income of P is Tk. -

A. 4000
B. 3500
C. 4050
D. 5000

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

P + Q = 10100

Q + R = 12500

P + R = 10400

Now,

P - Q = 10400 - 12500

P - Q = -2100

P + Q = 10100

So, 2P = 8000

Or, P = 4000

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

2986 . The average age of a group of 15 employees is 24 years. If 5 more employees join the group, the average age increases by 2 years. Find the average age of the new employees.

2987 . The average age of a husband, wife and their child 3 years ago was 27 years and the average age of the wife and the child 5 years ago was 20 years. What is the percent age of the husband?

2988 . The average age of husband,wife and their child 3years ago was 27 years and that of wife and the child 5years ago was 20years.The present age of husband is :

2989 . The average age of the 20 aspirants of a class is 19.2 years. After some time two more aspirants join them and then average is increased by 0.3 years. Find the difference between the age of new aspirants .

2990 . The average age of the three is 24 years. If none of them is below 21 years of age then what is the maximum age of any of them?

2991 . The average age of three persons is 30 years. If the ratio of three ages is 3 : 5 : 7. What is the age of the youngest person?

2992 . The average attendance of a college for the first three days of a week is 325 and first four days is 320. How many were present on the fourth day?

2993 . The average cost of 5 apples and 4 mangoes is 36 taka. The average cost of 7 apples and 8 mangoes is 48 taka. Find the total cost of 24 apples and 24 mangoes.

2994 . The average daily wage of 10 workers is Tk. 400 If the lowest wage is Tk.300, then what is the possible maximum wage?

2995 . The average daily wage of 10 workers is Tk.400. If the lowest wage is Tk.300, then what is the possible maximum wage?

2996 . The average daily wages of female workers in a factory is Tk. 30 and than of male workers is Tk. 42. If the average wages of all the workers is Tk. 37, what is the ratio of male to female workers.

2997 . The average height of girls in a class is 5 ft and that of boys is 5.7 ft. If the average height of the students in class is 5.5 ft, what could be the possible strength of boys and girls respectively in the class.

3000 . The average monthly income of P and Q is Tk. 5050. The average monthly income of Q and R is Tk. 6250 and the average monthly income of P and R is Tk. 5200. The monthly income of P is Tk. -

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক