Question

4. Janta Express runs at a speed of 153 km per hour. What is its speed in
(a) metres per minute?
(b) centimetres per second?
An ant is moving at a speed of 12.5 cm per second,​

Answer 1

Answer:

( a ) metres per minute = 2250 m per minute.

( b ) centimetres per second = 3750 cm per seconds.

Step-by-step explanation:

It runs at a speed of = 153 km per hour

To Find : ( a)

metres per minute

speed per minute

= distance / time

= 153 / 60 minutes

= 2.25 km per minute

distance in metres

1 km = 1000 m

2.25 km = 2.25 × 1000

= 2250 m per minute

hence = It runs 2250 m per minute.

To Find : ( b )

centimeters per second

speed per second

= distance / time

= 2250 m / 60 secs.

= 37.5 m per seconds

distance in centimeters

1 m = 100 cm

37.5 m = 37.5 × 100 cm

= 3750 cm

= 3750 cm per second

Hence = it covers 3750 cm per second.

please mark me as brainliest.