Question

Q3) What is the area of a square park whose side is 160 m? Find the total cost of
planting grass in it at 5 per square metre.​

Answer 1

ANSWER :

area of square park is 25,600 square meter

cost of planting grass is 1,28,000

Step-by-step explanation:

Area of square park is Side × Side

160 × 160

25,600

Cost of planting grass in it at 5 per square meter =

1 meter - rupees 5

25,600 meter - rupees 1,28,000

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Answer 2

Given:-

• side is 160 metres.
• cost of planting grass in it at ₹5 per m²

Find:-

• area of a square park
• cost of planting grass

Formula used:-

• Area = (s)²
• Unitary Method

Solution:-

Area = (s)²

=> (160)²

=> 25600 m² Ans.

Cost of planting grass in 1 m² = ₹5

:. Cost of planting grass in 25600 m²

= ₹5 × 25600

=> ₹ 1,28,000 Ans.

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