Q12. A lawn is 80 m long and 60 m wide. There is a swimming pool of length 20m x 6 m on this lawn. What will be the cost of putting grass in the remaining part of the field at ₹ 30 per square meter?
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Answer:-
Breadth of lawn = 60m (B)
Length of lawn = 80m (L)
Breadth of swimming pool = 6m (b)
Length of swimming pool = 20m (l)
Therefore, the area ofor remaining part of the field ;
Area of the lawn - Area of swimming pool
= (L×B) - ( l×b)
= (60×80) - (20×6)
= 4800 - 120
= 4680 metre square .
Cost for planting grass / m square = 30 rupees
= 4860 ×30
= 140,400$
Step-by-step explanation:
Hope it helps!
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