Question

A and b can finish work in 5 days if person a work twice b work 1/3 efficently them complete work in 3 days

Answer 1

One Day's work of A and B together,

1/A + 1/B = 1/5. ------ (i)

When A works with twice efficiency,Then,

2/A + 1/3B = 1/3. --------(ii)

on solving equations (i) and (ii), we get

A = 25/4 = 6 1/4.

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