Question

A does 20 persent less work than B, if A can complete a piece of work in 15/2 hours ,then B can do it in how many houts​

Answer 1

Explanation:

Correct Answer:

B) 6 h

Description for Correct answer:

Let time taken by B = x

Efficiency ∝ 1Time taken

So, if B is 100% efficient. then A is 80% efficient.

SO, 80100= x15/2

x=6 h

Answer 2

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