Question

What is the expenditure of completely painting a 4 m high metal sheet around
a rectangular ground of length 120 m and breadth 80 m at the rate of
50 per m??
(1) 160,000
(2) 80,000
(3) 480,000
(4) 240,000.​

Answer 1

Step-by-step explanation:

perimeter of rectangle = 2(l+b)

2(120+80) = 400

sheet covered = 400×4 = 1600

total cost= 1600×50m

= 80, 000