IBPS SO Prelims Exam Model Paper 1

Let the distance covered by the car be ‘d’ km
Distance covered at speed of 60 km/hr. = 60% of d = 0.6d
Distance covered at speed of 50 km/hr. = d – 0.6d = 0.4d
∵ Time =

Distance

Speed

⇒ Total time taken in journey =

0.6d

60

+

0.4d

50

=

d

100

+

d

125

=

9d

500

Now, if the car had travelled at 50 km/hr. throughout, it would have covered 40 km less
⇒ d – 40 = 50 ×

9d

500

⇒ d –

9d

10

= 40
⇒

d

10

= 40
⇒ d = 400 km
∴ Distance covered by car = 400 km