IBPS SO Prelims Exam Model Paper 7

Given:
When speed is 5 km/hr reaches 6 min late
And when speed is 6 km/hr reaches 2 min early
Formula:
Speed =

distance

time

Calculations:
Let distance = d km
now, when speed 5 km/hr he reaches 6 minutes late
Time = (T +

6

60

) hour
When speed 6 km/hr reaches 2 minutes before
Time = (T -

2

60

) hour
Time difference = (T +

6

60

) – (T –

2

60

)
⇒ T +

6

60

– T +

2

60

⇒

8

60

hour
⇒

d

5

–

d

6

=

8

60

⇒

d

30

=

8

60

⇒ d = 4 km
∴ Distance between home and office is 4 km.