Question

A room 10.5m long and 4.5m wide is surrounded by a varandah 2.25m wide. Calculate the cost of cementing the floor of this varandah at ₹25per square meter​

Answer 1

length of room 10.5

breath of room 4.5

area of room=10.5×4.5=47.25

length after add varandha=10.5+2× 2.25=15

breath after add varandha=4.5+2×2.25=9

area after add varandha =15×9=135

remain area=135-47.25=87.25

cost=25×87.25=2181.25