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Question

The length and breadth of a rectangular courtyard is 45 m and 35 m respectively. Find the distance covered by a boy to take 5 rounds of the courtyard.


Your Answer
A
200 m
Your Answer
B
400 m
Your Answer
C
600 m
Correct Answer
D
800 m

Solution

The correct option is C 800 m

Given,
Length of the courtyard = 45 m
Breadth of the courtyard = 35 m

Courtyard is in the shape of rectangle.
We know that perimeter of a rectangle = 2 x (length + breadth)
Therefore, perimeter of the courtyard
= 2 (45 + 35) m 
= 2 × 80 m 
= 160 m

Distance covered by the boy in taking 5 rounds of the courtyard
= 5 × perimeter of courtyard
= 5 × 160 
= 800 m

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