Question

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Answer 1

Answer:

I) 2 men

Step-by-step explanation:

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Answer 2

Q11. Three men can build a wall in 10 hours .How many men Would needed to build the wall in 7 1/2 hours.

Solution :

Given :

Three men build a wall in 10 hours.

Find that:

No of men needed to build a wall in 7 1/2 hours.

=> In 1 hours a man needed to build a wall = 10 × 3 = 30 men

=> In 7 1/2 hours man needed to build a wall = 30 × 7 1/2

= 2 men