Question:
A man can row with a speed of 15 km/hr in still water. If the stream flows at 5 km/hr then his speed in down stream is ..... ?
A10 km/hr
B5 km/hr
C20 km/hr
D22 km/hr
Answer:
C. 20 km/hr
Explanation:
Speed in still water - 15 km/hr Speed of stream = 5 km/hr Down stream speed = (15+5) km/hr = 20 km/hr