The effective speed of travel of a boat downstream is 18 kmph whereas it is 10 kmph upstream. What is the speed of the current?
A
14 kmph
B
8 kmph
C
4 kmph
D
5 kmph
Correct Option - C Explaination
Speed of the current
= (d-u)/2
= (18-10)/2
= 4 kmph
