Question

A rectangle block is 9m long, 5m wide and 3m high. Find the cost of colouring its surface area at 50 paise per sq. m.?​

Answer 1

Step-by-step explanation:

Length =9m

Breadth =5m

Height =3m

surface area= 2(lb+bh+hl)

2(9×5+5×3+3×9)

2(45+15+27)

2(87)

=184m²

1m²=50 RS

184m²=50×184

=Rupees 9200

Cost of colouring = Rs 9200