MATHEMATICS > Time and Work
1) Two taps A and B can fill a tank in 10 hours and 15 hours respectively. Both the taps are opened for 4 hours and then B is turned off. The time taken by A to fill the remaining tank is
A) 12/5 hoursB) 13/10 hours
C) 6 hoursD) 10/3 hours
View AnswerDiscuss on this        JULY 2014
Answer : 10/3 hours


2) A can do a work in 12 days; B in 6 days and C in 3 days. A and B start working together and after a day, C joins them. The total number of days required to complete the work is
A) 2 2/7 daysB) 1 2/7 days
C) 2 1/7 daysD) 1 1/7 days
View AnswerDiscuss on this        Group 4 held on 2013
Answer : 2 2/7 days


3) A can complete 2/3 part of a work in 10 days. A can complete 1/3 part of the same work in
A) 3 daysB) 4 days
C) 5 daysD) 6 days
View AnswerDiscuss on this        Group 4 held on 2013
Answer : 5 days