Question

A scout has to reach another camp 35 km due
north of the base camp. He sets out off the base
camp in a direction 53° North of East and walks
at constant speed of 3 km/h. After some time he
realizes that he has chosen wrong way and takes
a turn and walks at the same constant speed in a
straight line to reach the other camp. What least
time in hour, he can take after the turn.
(1) 5 h
(2) 7 h
(3) 21 h
(4) 63 h
​

Answer 1

Answer:

21 hr

Explanation:

distance between scout and camp = 35 km

scout's speed = 3km/hr

time should be taken without any mistake = distance÷ time

time = 11.6 hr

so nearest time would be c) 21hr