Q6 of 41 Page 10

A work force of 50 men with a contractor can finish a piece of work in 5 months. In how many months the same work can be completed by 125 men?

Let the number of months required is














Men



50



125



Time (months)



5







Therefore the number of months required to complete the work is 2 months


More from this chapter

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4

It is known that for a given mass of gas, the volume v varies inversely as the pressure p. Fill in the missing entries in the following table :


























v (in cm)3



…



48



60



…



100



…



200



p (in atmospheres)



2



…



3/2



1



…



1/2



…


 5

If 36 men can do a piece of work in 25 days, in how many days will 15 men do it?

 7

A work-force of 420 men with a contractor can finish a certain piece of work in 9 months. How many extra men must he employ to complete the job in 7 months?

 8

1200 men can finish a stock of food in 35 days. How many more men should join them so that the same stock may last for 25 days?