Chain Rule Practice Test 1 with solutions

Question : 15 of 40

Marks: +1, -0

If 5 men or 9 women can do a piece of work in 19 days, then 3 men and 6 women will do the same work in how many days?

Solution:

5 men = 9 women
∴ 3 men =

9/5 × 3

{27}/5

women
Hence, 3 men and 6 women =

{27}/5 + 6

{57}/5

women

Women	Days
9	19
57/5	x

⇒

x/{19}

{9×5}/{57}

∴ x =

{9×5}/{57} × 19

= 15 days

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