Question

a room is 4.5m long, 3.4m wide and 210 cm high. find out the cost of painting the room at the rate of rs.25 per m² ​

Answer 1

Answer:

area l*b*h

4.5* 3.4*210

=3307.5

cost of painting

=3307.5*25=82,687.5

Answer 2

Answer:

LSA of cuboid = 2(bh+hl)

= 2(3.4×2.1+2.1×4.5)

= 33.18m²

Cost of painting 1m² = Rs. 25

Cost of painting 33.18m² = 25×33.18

= Rs. 829.5

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