SSC CHSL 2019 PYQ — Question 71

SSC CHSL - 9th July 2019 - Shift 1 • Quantitative Aptitude • Q71

The ratio between the speeds of two trains is 2 : 5. If the first train runs 250 km in 5 h, then the difference between the speeds (in km/h) of both the trains is:

Show answer & explanation

Correct answer: B

Explanation

Correct Answer is option 2 i.e. 75

Understanding

Application

Given:

Ratio between the speeds of two trains is 2 ∶ 5

Since the first train covers 250 km in 5 hours:

Speed of 1st train = 250/5 = 50 km/hr

Then,

Speed of 2nd train = 50 × 5/2 = 125 km/hr

Difference = 125 – 50 = 75