L&T Company Numerical Ability Boats and Streams

A boat running upstream takes 640 min to cover a certain distance, while it takes 280 min to cover the same distance running down stream. What is the ratio between the speed of the boat and speed of water current respectively?
1) 23: 7
2) 22: 9
3) 23: 8
4) 23: 9
5) 23: 11

Read Solution (Total 6)

L&T Other Question

A can do a work in 60 days. He works for 15 days and later B alone completes the work in 30 days. In what time will they together complete the work?
(a) 24 days
(b) 25 days
(c) 30 days
(d) 32 days
(e) None of these
Disha drives a car at an average speed of 48 km/h and reach her destination in 6 hours. Himanshu covers that distance in 4 hours. If Disha increases her average speed by 8 km/h and Himanshu increases his average speed by 4 km/h, then what will be the difference in time taken by them to reach their destination?
1) 1 47/133 hr
2) 1 41/133 hr
3) 2 47/133 hr
4) 1 40/133 hr
5) 1 45/133 hr