12 people can do a work in 4 days, so 8 times the work How many people will be able to complete in half the time?

12 persons can do a piece of work in 4 days. How many persons are required to complete 8 times the work in half the time? 144 b. 190 c. 180 d. 192

27. 15 people completed a work in 7 days 10 How many days should people take to complete this work?

If A can do a piece of work in 4 days, B can do the same work in 8 days and C can do the same work in 12 days , then working together , how many days will they take to complete the work ?

A can do a work in 36 days and B in 12 days. If they work to gether in how many days will they be able to do the work?

30 persons can do a piece of work in 24 days. How many more people are required to complete the work in 20 days?

15 persons can do a piece of work in 12 days. How many more people are required to complete the work in 10 days?