Question

10. The floor of a rectangular hall has a
perimeter of 260 m. Its height is 6 m. Find
the cost of painting its four walls at the rate
of Rs 7.25 per sq metre.​

Answer 1

Question :-

• The floor of a rectangular hall has aperimeter of 260 m. Its height is 6 m. Findthe cost of painting its four walls at the rate of Rs 7.25 per sq metre.

Answer :-

• Rs.11,310

Given :-

• Perimeter of rectangular hall = 260m

• Hight = 6m

To find :-

• Find the cost of painting its four walls at the rate of Rs 7.25 per sq metre.

Solution :-

Perimeter of rectangular hall = 260m

Hight = 6m

Area of 4 walls = 260 × 6 = 1,560 ${m}^{2}$

Cost of painting 1sq m = Rs.7.25

Cost of painting 4 walls = 1,560 × 7.25 = Rs.11,310