SSC CGL 2023 PYQ — Question 59

SSC CGL - 18 July 2023 - Shift 4 • Quantitative Aptitude • Q59

Shatabdi Express train covers 700 km in 5 hours and another 1012 km in 11 hours, What is the average speed of the train (in metres/second)?

Show answer & explanation

Correct answer: C

Explanation

The correct answer is Option 3 i.e. 29131829\frac{13}{18}.

The first distance D1 = 700 km

The time to cover first distance T1 = 5 hours

The second distance D2 = 1012 km

The time to cover second distance T2 = 11 hours

The average speed = Total distanceTotal Time{Total\ distance}\over {Total\ Time}

Total distance = D1 + D2 = 700 + 1012 = 1712 km

Total time = T1 + T2 = 5 + 11 = 16 hours

Now, Average speed = 1712161712 \over 16 = 107 km/h

The average speed in m/sec = 107 ×518\times {5 \over 18}= 29131829\frac{13}{18} m/sec