Question

19. 20 men can do a work in 20 days. How many more men are needed to complete the
work in 5 days?

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Answer 1

Answer:

Answer=12.

Step-by-step explanation:

20 men complete one-third of a work in 20 days

Part of work completed by 20 m in 20 days =1/3

Part of work completed by 20 m in 20 days =1/3

Part of work completed by 1 m in 1 days =(1/3)(1/20)(1/20)=(1/1200)

Let n be the additional men required to finish the work in 25 more days.

Thus,

part of completed work + part of work to be completed in 25 days = 1

(1/3)+(20+n)x 25 x (1/1200)=1

(1/3)+(1/48)(20+n)=1

n=12.

Ans: 12 more men should be employed to finish the rest of the work.

Answer 2

Answer:

others 12

me,

20 men = 20 days

5 days = 5 men