Question

The perimeter of a rectangular park is 132 m. Its length and breadth are in the ratio 12:10. Find the cost of planting grass at the rate of ₹ 6 per square metre.

Answer 1

Step-by-step explanation:

perimeter = 132 m

l:b = 12 :10

l and b are lenth and bredth

let x be factor of ratio

12x+10×=132

22×=132

×=132÷22=6

m² grass cost = ₹6

area of rectangle = lxb = 12×6+10×6=72+60=132 m²

cost = 132m²×6/m²= ₹ 792