Question

A verandah 1.25 m is constructed all along outside of a room 7.5 m

long and 5 m wide. Find

(a) The area of the verandah.

Answer 1

Answer:

Area of the room is given by 7.5m×5m = 37.5m

2

Area of the verandah with room is given by (7.5+1.25+1.25)m×(5+1.25+1.25)m=10m×7.5m=75m

2

∴ The area of the verandah = 75m

2

- 37.5m

2

= 37.5m

2

Cost of cementing the floor of the verandah = Rs.15/m

2

Total cost of cementing the floor of the verandah = 37.5×15=Rs562.5

Answer 2

Answer:-

75 m²

Explanation:-

V means Verandah.

R means Room.

L means Length.

B means Breadth.

Lv = Lr + 1.25 + 1.25 ( 1.25 × 2 )

Bv = Br + 1.25 + 1.25 ( 1.25 × 2 )

Lv = 7.5 + 1.25 + 1.25

Bv + 5 + 1.25 + 1.25

Lv = 10 m

Bv = 7.5 m

Area Of Rectangle = L × B

= 10 × 7.5

= 75 m²

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