751 . A businessman has 1000 kg of rice, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. How much Kg of rice did he sell at 18% profit?

A. 600
B. 620
C. 640
D. None

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Answer: Option A

Explanation:

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গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক | ২০.০৪.২০১৮

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752 . A cake is divided into 18 pieces. If Rehana takes 1 / 3rd of the cake and Rashed takes 1 /3rd of the cake left, how many pieces are left?

A. 8
B. 6
C. 4
D. 10

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Answer: Option A

Explanation:

rehana took = 1/3 of 18 pieces = 6 pieces

ramaining = 12 pieces

rahim took 1/3 of 12 pieces = 4 pieces

total remaining = 12 - 4 = 8 pieces.

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NRBC BANK PO/TAO (16-06-2023) || 2023

A. 8 : 10 a.m
B. 8 : 05 a.m
C. 8 : 15 a.m
D. 7 : 50 a.m

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Answer: Option B

Explanation:

Three quarters of an hour = 45 minutes

7:20 am + 45 minutes = 8:05 am

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754 . A can complete a piece of work in 12 days, A, B and C can complete the work in 6 days, Efficiency of B is 0.5 times the efficiency of In how many days C can complete the works= alone?

A. 24 days
B. 10 days
C. 16 days
D. 12 days

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Answer: Option A

Explanation:

Efficiency ratio of A:B = 1 : 3 = 2:1

So, days ratio A:B = 1:2

A needs 12 days, So B needs 12x2 = 24 days

C can do in 1 day = 1/6 - {(1/12) + (1/24)} = (1/6) - ((3/24) = (1/24) part

C can do 1/24 part in 1 day

" " " 1 " " 1X24 = 24 day.

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

A. 16 days
B. 18 days
C. 23 days
D. 27 days

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Answer: Option B

Explanation:

1 দিনে A ও B একত্রে করে ( 1/20 + 1/30) = 1/12 অংশ

B 10 দিনে করে 10/30 অংশ = 1/3 অংশ

অবশিষ্ট ( 1 - 1/3) = 2/3 অংশ

A ও B একত্রে 1/12 অংশ করে 1 দিনে

A ও B একত্রে 1 অংশ করে = ( 12 ×1) দিনে

A ও B একত্রে 2/3 অংশ করে = 12 × 2 /3 = 8 দিনে

মোট সময় লাগে ( 10 + 8) দিন = 18 দিন

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756 . A can contains a mixture of two liquids A and B in the ratio 7:5. When 9 liters of mixtures are drawn off and the can is filled with B, the ratio of A and B becomes 7:9. How many liters of liquid A was contained by the can initially?

A. 10
B. 20
C. 21
D. 25

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Answer: Option C

Explanation:

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Uttara Bank PLC || Probationary Officer (09-11-2024) || 2024

A. 8 hours
B. 12 hours
C. 10hours
D. 24 hours

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Answer: Option B

Explanation:

A,B and C together need = (3×4)/(3 + 4) = 12/7 hours

And C need 2 hours

∴B need = {(12/7)×2}/{2 - (12/7)} hours

= (24/7)/{(14 - 12)/7}

= 24/2 hours

= 12 hours

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758 . A can do a piece of work in 4 hours, B and C together can do it in 3 hours , while A and C together can do it in 2 hours. How long will B alone take to do it?

A. 8 hours
B. 10 hours
C. 12 hours
D. 24 hours
E. None of these

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Answer: Option C

Explanation:

A 1 hour work = 1/4

(B + C) 1 hour work = 1/3

(A + C) 1 hour work = 1/2

(A + B + C) 1 hour work = (1/4 + 1/3) = 7/12

B 1 hour work = ( 7/12 - 1/2) = 1/12

B alone will take 12 hour to do the work.

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759 . A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day ?

A. 2/5
B. 1/6
C. 1/9
D. 2/7

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Answer: Option B

Explanation:

Hints: Given that B alone can complete the same work in day = half the time taken by A = 9 days

A's One day's work = 1/18

B's One days work = 1/9

(A + B)'s one days work = 1/18 + 1/9 = 1/6

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760 . A can finish a work in 5 days and B takes 4 days to do the same work. If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together?

A. 10 days
B. 15 days
C. 20 days
D. 25 days

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Answer: Option C

Explanation:

new work size = 1 + 8 = 9 works.
A & B can do in 1 day (working together) = 1/5 + 1/4 = 9/20
Required number of days = 9/(9/20) = 20 days. Ans: C

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

A. 60
B. 80
C. 200
D. None of these

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Answer: Option B

Explanation:

Let the maximum marks be 'x'.

Then, according to the question.

(25 % of x) + 30 = (50 % of x) - 20

⇒ x/4 + 30 = x/2 - 20

⇒ (x/4) - (x/2) = - 20 - 30

⇒ (x - 2x)/4 = - 50

⇒ - x/4 = - 50

⇒ - x = - 200

⇒ x = 200

So, the maximum marks are 200.

Minimum passing marks are = x/4 + 30 = 200/4 + 30 = 50 + 30 = 80 marks

Minimum passing marks are 80

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762 . A car goes 15 km on a gallon of octane when it is driven at 50 km/h. When the car is driven at 60 km/h, it only goes 80% as far. How many gallons of octane are needed to travel 200 km if half the distance is traveled at 50 km/h and the rest 60 km/h?

A. 15.00
B. 16.67
C. 10.60
D. 14.00

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Answer: Option A

Explanation:

প্রতিক্ষেত্র গতি ৫০ কিমি/ঘন্টায়

দ্বিতীয় ক্ষেত্রে গতি ৬০ কিমি/ঘন্টায়

প্রতি গ্যালন এ যায় = ১৫ × ৮০/১০০ = ১২ কিমি

৫০ কিমি/ঘন্টায়,

৫ কিমি যায় = ১ গ্যালন অকটেনে

২০০/২ = ১০০ কিমি যায় = ১০০/১৫ গ্যালন

আবার, ৬০ কিমি/ঘন্টায়

১২ কিমি যায় = গ্যালন অকটেনে

১০০ কিমি যায় = ১০০/১২ গ্যলনে

মোট যায় = ১০০/১৫ + ১০০/১২ = ৪০০ + ৫০০/৬০ = ৯০০/৬০ = ১৫ গ্যলন

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763 . A car got 33 miles per gallon using gasoline that coast $295 per dollars. Approximatley what was the cost, in dollars, of the gasoline used in driving the car 350 miles?

A. $10
B. $31
C. $40
D. $50

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Answer: Option B

Explanation:

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

A. 11 hours
B. 9 hours
C. 10 hours
D. 12 hours

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Answer: Option A

Explanation:

150 ÷ 1000 = ভাগশেষ = 100, ভাগফল = 6

100 km/hr বেগে 1000 km অতিক্রম করে 10 ঘন্টায় । কিন্তু 150km পর পর থামার কারনে সময় ব্যায় হয়। ( 6 × 10) মিনিটে বা 60 মিনিট বা 1 ঘন্টা

মোট সময় লাগে ( 10 + 1) = 11 ঘন্টা।

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765 . A car is running at a speed of 108 kmph. What distance will it cover in 15 seconds?

A. 55 meters
B. 45 meters
C. 450 meters
D. None of these

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Answer: Option C

Explanation:

1 hour=60×60×60=216000 sec

In 216000 sec it goes 108 km

So, in 15 seconds it goes

(15×108)/216000 km

=0.45km

=0.45×1000 m

=450 meters

(ans)

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751 . A businessman has 1000 kg of rice, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. How much Kg of rice did he sell at 18% profit?

BdMerit-এর ১ বছরের প্রিমিয়াম প্যাকেজ কিনে ১০ মাস নিয়মিত প্রস্তুতি নিন—

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752 . A cake is divided into 18 pieces. If Rehana takes 1 / 3rd of the cake and Rashed takes 1 /3rd of the cake left, how many pieces are left?

753 . A cake is put in the oven at 7.20 am. If the cake takes three quarters of an hour to bake, at what time should it be taken out of the oven?

754 . A can complete a piece of work in 12 days, A, B and C can complete the work in 6 days, Efficiency of B is 0.5 times the efficiency of In how many days C can complete the works= alone?

755 . A can complete a project in 20 days and B can complete the same project in 30 days. A and B start working on the project together and A quits 10 days before the project is expected to be completed. How many days in total will the project take to complete ?

756 . A can contains a mixture of two liquids A and B in the ratio 7:5. When 9 liters of mixtures are drawn off and the can is filled with B, the ratio of A and B becomes 7:9. How many liters of liquid A was contained by the can initially?

757 . A can do 3 piece of work in 4 hours, B and C together in 3 hours , and A and C together in 2 hours. How long will B alone take to do it?

758 . A can do a piece of work in 4 hours, B and C together can do it in 3 hours , while A and C together can do it in 2 hours. How long will B alone take to do it?

759 . A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day ?

760 . A can finish a work in 5 days and B takes 4 days to do the same work. If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together?

761 . A candidate scoring 25% marks in an examination fails by 30 marks while another candidate who score 50% marks gets 20 marks more than the minimum pass marks. what is the minimum pass mark?

762 . A car goes 15 km on a gallon of octane when it is driven at 50 km/h. When the car is driven at 60 km/h, it only goes 80% as far. How many gallons of octane are needed to travel 200 km if half the distance is traveled at 50 km/h and the rest 60 km/h?

763 . A car got 33 miles per gallon using gasoline that coast $295 per dollars. Approximatley what was the cost, in dollars, of the gasoline used in driving the car 350 miles?

764 . A car is driven at the speed of 100 km/hr and stops for 10 minutes at the end of every 150 km. To cover a distance of 1000 km, it will take.

765 . A car is running at a speed of 108 kmph. What distance will it cover in 15 seconds?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক

751 . A businessman has 1000 kg of rice, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. How much Kg of rice did he sell at 18% profit?

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752 . A cake is divided into 18 pieces. If Rehana takes 1 / 3rd of the cake and Rashed takes 1 /3rd of the cake left, how many pieces are left? ​

753 . A cake is put in the oven at 7.20 am. If the cake takes three quarters of an hour to bake, at what time should it be taken out of the oven?

754 . A can complete a piece of work in 12 days, A, B and C can complete the work in 6 days, Efficiency of B is 0.5 times the efficiency of In how many days C can complete the works= alone?

755 . A can complete a project in 20 days and B can complete the same project in 30 days. A and B start working on the project together and A quits 10 days before the project is expected to be completed. How many days in total will the project take to complete ?

756 . A can contains a mixture of two liquids A and B in the ratio 7:5. When 9 liters of mixtures are drawn off and the can is filled with B, the ratio of A and B becomes 7:9. How many liters of liquid A was contained by the can initially?

757 . A can do 3 piece of work in 4 hours, B and C together in 3 hours , and A and C together in 2 hours. How long will B alone take to do it?

758 . A can do a piece of work in 4 hours, B and C together can do it in 3 hours , while A and C together can do it in 2 hours. How long will B alone take to do it?

759 . A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day ?

760 . A can finish a work in 5 days and B takes 4 days to do the same work. If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together?

761 . A candidate scoring 25% marks in an examination fails by 30 marks while another candidate who score 50% marks gets 20 marks more than the minimum pass marks. what is the minimum pass mark?

762 . A car goes 15 km on a gallon of octane when it is driven at 50 km/h. When the car is driven at 60 km/h, it only goes 80% as far. How many gallons of octane are needed to travel 200 km if half the distance is traveled at 50 km/h and the rest 60 km/h?

763 . A car got 33 miles per gallon using gasoline that coast $295 per dollars. Approximatley what was the cost, in dollars, of the gasoline used in driving the car 350 miles?

764 . A car is driven at the speed of 100 km/hr and stops for 10 minutes at the end of every 150 km. To cover a distance of 1000 km, it will take.

765 . A car is running at a speed of 108 kmph. What distance will it cover in 15 seconds?

752 . A cake is divided into 18 pieces. If Rehana takes 1 / 3rd of the cake and Rashed takes 1 /3rd of the cake left, how many pieces are left?