Question

Find the cost of painting the four walls of a room 10m long 5m broad and 6m high at the cost 4 per square metres

Answer 1

L-10m
B_5m
H-6m
Volume - l*b*h
10*5*6
300cm square
300*4
₹1200- ans

Answer 2

Total area for painting
=2 h(l+b)
=2*6(10+5)
=12*15
=180sqm
Per sqm =₹4
For 180sqm sqm,
=180 *4
=720 rs
The cost of Painting is 720 rs

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