RRB RPF RPSF SI and CONS Model Papers 6 with solutions

Question : 49 of 120

Marks: +1, -0

Shiva is going for a meeting in an office 60 km away. He has to reach in 1 hour. However, due to traffic jam, he could drive only at 30 km/h for the first 20 minutes. The road is now clear. At what speed should Shiva drive to reach the destination in time?

45 km/h
60 km/h
80 km/h
75 km/h

Validate

Solution:

(4) Distance travelled by Shiva in 20 min

=30×{20}/{60} {km}=10 {km}

Distance left to be travelled = (60 – 10) km = 50 km
And time left to cover the remaining distance = 1 h – 20 min =

2/3

h
∴ Required speed

{50/2}/3=75

km / h

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