If both inlets are operational, a water tank can be filled in 36 minutes. The first inlet by itself would take 3 hours to fill the tank. How much water does the tank hold, in cubic meters, if the second inlet allows 60 cubic meters of water to flow in each minute more than the first?

Answer Choices

Correct answer marked below

2,400

3,600

Correct

4,800

6,00

72,000

See the full step-by-step explanation

You can see the correct answer above. Sign in for free to unlock the complete worked solution.

Track your performance and improve

Get detailed analytics, unlock full explanations, and move up difficulty tiers as you practice.

Start for free Sign in

Explanation

Preview

Official Explanation

Official

When both inlets are functioning, the water tank fills up in 36 minutes. The first inlet alone can fill the tank in 3 hours. If the second inlet allows 60 cubic meters of water to flow in each minute more than the first, what is the tank's capacity? a)10,800 b)14,400 c)12,960 d)8,640 e)15,600 We know that the rates of work are additive. The rate of work of inlet 1 = (1/3)…

Read the full explanation

Create free account Sign in

Comments

No comments yet

Be the first to share your thoughts and help others understand it better.

What this question tests

What it tests

Your ability to combine individual work rates, usually by working with the fraction of a job completed per unit of time.

Common trap

Adding the times instead of the rates, or forgetting to take the reciprocal when combining rates.