SSC GD 2019 PYQ — Question 68

SSC GD Constable (English) - 12 Feb 2019 Shift 2 • Quantitative Aptitude • Q68

Mohit starts moving from a place A and reaches the place B in 12 hours. He covers (1/5)th part of the total distance at the speed of 6 km/hr and covers the remaining distance at the speed of 8 km/hr. What is the distance between A and B?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 90 km.

Understanding/Application

Total time taken = 12 hours

1/5th of the distance is covered at the speed of 6 km/hr and remaining at 8 km/hr.

Speed = Distance/Time

Let the total distance be x.

ATQ -

[(x/5)/6] + [(4x/5)/8] = 12

(x/30) + (x/10) = 12

4x/30 = 12

x = 90