Subject :IMO Class : Class 10
A boat goes 32 km upstream and 36 km downstream in 7 hours. In 9 hours, it can go 40 km upstream and 48 km downstream. If x represents the speed of the boat in still water in km/hr and y represents the speed of the stream in km/hr, then_______.
A x + y = 12, x – y = 8
B x + y = 5, x – y = 11
C x + y = 6, x – y = 10
D x + y = 10, x – y = 6
Ans 1:
Class : Class 10
Ans 2:
Class : Class 6
How to solve this?
Ans 3:
Class : Class 10