Question

A door of dimension 3•5 m × 1•5 m is on the wall of dimension 12 m × 5•5 m find the cost of painting the wall if the rate of painting is $ 9 per square metre​

Answer 1

Answer:

₹ 39502.9125 or $542.35

Step-by-step explanation:

Area of the door = l*b sq units

= 3.5*1.5 sq m

= 5.25 sq m

Area of the wall = l*b sq units

= 12*5.5 sq m

= 66 sq m

Remaining part of the wall which has to be painted = 5.25 - 66 sq m

= 60.25

Cost for painting 1 sq m = $9

Cost for painting 60.25 sq m = $9*60.25

1 $ = ₹ 72.85

9 $ = ₹ 72.85*9

= ₹ 665.65

₹ 665.65*60.25

= ₹ 39502.9125

= $542.35