1.A and B together can do a job in 6 days. B alone can finish it in 10 days. In how many days can A alone finish the work? (1)
- (1) 15 days
- (2) 20 days
- (3) 24 days
- (4) Cannot be determined
- (5) None of these
2.A is 25% more efficient than B and takes 2 days less than B to complete a certain work. Then what time will be taken by both of them working together? (3)
- (1) 49/9days
- (2) 48/11 days
- (3) 40/9days
- (4) Cannot be determined
- (5) None of these
3.24 men working 8 hours a day can finish a work in 10 days. Find the number of men required to finish the same work in 6 days working 5 hours a day? (2)
- (1) 60
- (2) 64
- (3) 80
- (4) 72
- (5) None of these
4.A machine A can print one thousand books in 10 hours, machine B can print the same number of books in 12 hours while machine C print them in 15 hours. All the machines are started at 9 a.m. while machine A is closed at 11 a.m. and the remaining two machines complete the work. Approximately at what time will the work be finished? (4)
- (1) 11:30 a.m.
- (2) 12 noon
- (3) 12:30 pm
- (4) 2:20 pm
- (5) None of these
5. The work done by a man, a woman and a child is in the ratio of 3 : 2 : 1. There are 20 men, 30 women and 48 children in a factory. Their weekly wages amount to Rs 840, which is divided in the ratio of work done by the men, women and children. What will be the wages of 15 men, 21 women and 30 children for 2 weeks? (3)
- (1) Rs 585
- (2) Rs 292.5
- (3) Rs 1170
- (4) Rs 900
- (5) None of these