IBPS SO Prelims Exam Model Paper 7

Given:
The original speed of Bus = 125 kmph
The bus stopped in every hour = 12 minutes
Formula used:
Stoppage time (in hours) =

Original‌speed−Speed‌with‌stoppage

Original‌speed

Calculation:
Let the speed of the bus including stoppage be x.
Stoppage time (in hours) =

(Original‌speed−Speed‌with‌stoppage)

Original‌speed

⇒

12

60

=

(125−x)

125

⇒

1

5

=

(125−x)

125

⇒ (625 - 5x) = 125
⇒ x =

(625−125)

5

⇒ x = 100
∴ The amount of the speed of the bus including stoppages is 100 kmph.