Categories
World Affair

A boat takes 6 hours to travel from place M to N downstream and back from N to M upstream. If the speed of the boat in still water is 4 km./hr., what is the distance between the two places?

(a) 8 kms.
(b) 12 kms.
(c) 6 kms.
(d) Data inadequate
(e) None of these