Two Pipes A and B can fill a tank in 6 ho… | Answer

Subject

Quantitative Aptitude

Topic

Pipes & Cistern

Two Pipes A and B can fill a tank in 6 hours and 4 hours respectively; If they are opened on alternative hours and if pipe A is opened first, in how many hours, the tank shall be full ?
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ক)

খ)

4.5

গ)

ঘ)

5.5

Explanation

Solution: (A+B) can fill in first (1+1) = 2 hours 1/6 + 1/4 = (2+3)/12 = 5/12 part. (A+B) can fill next 2 hours = 5/12 part. In first 4 hours the tank fill = 5/12 + 5/12 = 10/12 = 5/6 part. Remaining part 1- 5/6 = 1/6 part. In 5th hour A can fill 1/6 part, So total time 4+1 = 5 hours.

A can do a work in 10 days, B can do the same work in 15 days. If they work together, how long will it take them to finish the work ?Jamal needs 8 hours to do a job. Kamal takes 10 hours to do the same job. How long should it take Kamal & Jamal working together to do the job ?Two pipes A and B can fill a take in 20 and 30 minutes respectively. If both the pipes are used together, than how long will it take to fill the tank ?A Pump can fill a tank with water in 2 hours. Because of a leak, it took

2\frac{1}{3}

hours to fill the tank. The leak can drain all the water of the tank in:Three Pipes can independently fill a water tank in 10, 12 and 15 hours. How many hours will it take for all three Pipes opened together to fill half of the tank ?

Two Pipes A and B can fill a tank in 6 hours and 4 hours respectively; If they are opened on alternative hours and if pipe A is opened first, in how many hours, the tank shall be full ?Reading

Two Pipes A and B can fill a tank in 6 hours and 4 hours respectively; If they are opened on alternative hours and if pipe A is opened first, in how many hours, the tank shall be full ?

Explanation

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Two Pipes A and B can fill a tank in 6 hours and 4 hours respectively; If they are opened on alternative hours and if pipe A is opened first, in how many hours, the tank shall be full ?
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