A. Less than 6 days
B. Exactly 6 days
C. Approximately 6.4 days
D. More than 10 days
1 day's work of the three persons = (1/15+1/20+1/25)
So, all the three together will complete the work in = 300/47
= 6.4 days.
16 men can complete a work in 35 days. In many days can 28 men complete the same piece of work?
24 men working 8 hours a day can finish a work in 10 days. Worked at the rate of 10 hours a day, the number of men required to finish the same work in 6 days is :
The average monthly income of A and B is Rs. 5050. The average monthly income of B and C is Rs. 6250 and the average monthly income of A and C is Rs. 5200. What is the monthly income of A?
If 80 lamps can be lighted, 5 hours per day for 10 days for Rs. 21,25, then the number of lamps, which can be lighted 4 hours daily for 30 days, for Rs. 76.50, is:
A person works on a project and completes 5/8 of the job in 10 days. At this rate, how many more days will he it take to finish the job?
10 men, working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the same work in 12 days?
x men working x hours per day can do x units of a work in x days. How much work can be completed by y men working y hours per day in y days?
If 18 binders bind 900 books in 10 days, how many binders will be required to bind 660 books in 12 days?
A tank is filled in 5 hours by theree pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank ?
A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With the help of C, they did the job in 4 days only. Then, C alone can do the job in: