Question

Cheryl and her sister Diane walk to school along the same route. Cheryl walks at an average of
80 steps per min while Diane walks at an average of 90 steps per min. Cheryl takes steps
of 81 cm each. She takes 12 min to walk to school.
a) What is the distance between their house and the school (Give your answer in metres) ?

metres
b) If each of Diane's steps in 72 cm, how long does Diane take to walk to school?


minutes
c) If Diane takes 16 min to walk to school, how long is each of her steps?

Answer 1

The distance between their house and the school from the information given will be 777.60 meters.

How to calculate the distance?

The distance between their house and the school will be:

= 80 × 81 × 12

= 77760cm

= 777.60 meters.

When Diane takes 16 min to walk to school, the length of her steps will be:

= 77760/(16 × 90)

= 54 cm

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