Question

a playground 16 m 50 cm by 39 m 50 cm find the number of rounds about the ground runner should take to run 1 kilometre race ​

Answer 1

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Perimeter of rectangle = 2 × (L + B)

= 2 × (60.5 + 39.5)

= 2 × 100

= 200 m

Rounds the runner will need to take = 1km ÷ 200m

1km = 1000 meter

= 1000 ÷ 200

= 5 rounds ans.

Answer 2

Step-by-step explanation:

Dimensions of the playground

= 16 m 50cm × 39m 50cm

= 16.50 m × 39.50 m

Perimeter = 2 × (length + breadth)

= 2 × (60.50 + 39.50) m

= 2 × 100 m

= 200 m

Now, the number of rounds a runner should run around the playground to run 1 kilometre race

= 1km/200m

= 1000/200

= 5 rounds.

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