Question

A room is 5m by 4 m find the cost of cementing it's floor at Rs 7.50 per metre square

Answer 1

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$<b><font face=Copper black size=4>$Given,

length = 5 m

breadth = 4 m

•°• Area of the room

= length × breadth

= ( 5 × 4 ) m²

= 20 m²

Cost of per metre square (m²) = ₹ 7.50

•°• Cost of 20 m² = ₹ ( 7.50 × 20 ) = ₹ 150

Answer 2

Step-by-step explanation:

Length = 4

Breath = 5

Cost of cementing floor = Rs 7.50

1. Area of the room = ( L multiple B)
2. 5m multiple 4m
3. 20m per square
4. cost of per metre square =7.50
5. cost of 20 m per square =( 7.50 into 20) = Rs 150