Practice | Hashtable

Home > Practice > Arithmetic Aptitude > Time and Distance > Miscellaneous

1. A soldier fired two bullets at an interval of 335 seconds moving at a uniform speed V₁. A terrorist who was running ahead of the soldier in same direction, hears the two shots at an interval of 330 seconds. If the speed of sound is 1188 km/h, then who is the faster and how much?

A. Soldier, 22 km/h

B. Terrorist, 25 km/h

C. Soldier, 18 km/h

D. Terrorist, 20 km/h

Solution:

\frac{Speed of sound}{Relative  speed  of  soldier  and  terrorist} =

\frac{Time taken}{Difference in time}

\frac{1188}{S} = \frac{330}{5}

Soldier = 18 km/h

You must login to add comments. Login now.