Q306
Two guns were fired from the same place at an interval of 8 minutes. A person approaching the place observes that 5 minutes 52 seconds have elapsed between the hearing of the sound of the two guns. If the velocity of the sound is 330 m/sec, the man was approaching the place at what speed (in km/hr) ?
A.
24 km/hr
B.
27 km/hr
AnswerC.
30 km/hr
D.
36 km/hr
Answer: Option B
Solution
Answer: Option B
Solution:
Let the speed of the man be x m/secThen, distance travelled by the man in 5 min 52 sec
= Distance travelled by sound in 8 sec