Q2 of 27 Page 79

A square ground has 2 metre wide path all around it. The total area of the ground and path is 1225 square metres. What is the area of the ground alone?

Given the square ground has 2 metre wide path.


We know that area of a square = a2, where a is the side of square.


⇒ Area of path = 22 = 4 square metres


Given the total area of the ground and path = 1225 square metres


So, the Area of the ground = Total area of ground and path – Area of path


⇒ Area of ground = 1225 – 4 = 1221 square metres


∴ The area of the ground alone = 1221 square metres


More from this chapter

All 27 →
1

When each side of a square was reduced by 2 metres, the area became 49 square metres. What was the length of a side of the original square?

 1

When each side of a square was reduced by 2 metres, the area became 49 square metres. What was the length of a side of the original square?

 3

The square of a term in the arithmetic sequence 2, 5, 8, …, is 2500. What is its position?

 4

2000 rupees was deposited in a scheme in which interest is compounded annually. After two years the amount in the account was 2200 rupees. What is the rate of interest?