Question

the length and the breadth of a playground is 75 m and 34 m respectively.find the cost of ground at rs.1.5 per m square and find the distance covered by the boy who ran 8 times round the ground

Answer 1

Hey!

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Length of ground = 75 m
Breath of ground = 34 m
Area of ground = L×B

= 75×34
= 2550 m^2

Cost of 1 m^2 ground = Rs 1.5
Cost of 2550 m^2 ground = 2550×1.5
= Rs. 3825

Perimeter of ground = 2 (L+B)
= 2(75+34)
= 218
Distance covered if a boy covered 8 rounds = 218×8
= 1744 m

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Hope it helps...!!!

Answer 2

Area of playground =lenght*breadth

Area of playground=75*34
= 2550m²

Cost of ground =1.5*2550
=Rs 3825

Now,

Perimeter of playground = 2(lenght +breadth)

Perimeter of playground =2(75+34)
= 2*109
= 218 m

Distance covered by a boy =8*218
= 1744 m =1.744 km

I hope this will help you

-by ABHAY