1.

A verandah of width 2.25 m is constructed all along outside a room which is 5.5 m long and 4 m wide. Find:(i) the area of the verandah.(ii) the cost of cementing the floor of the verandah at the rate of Rs 200 per m2.

Answer» let PQ is the length of the house `= 5.5 + 2.25 + 2.25 = 10 m`
let QR bw the breadth of the house = `4 + 4.5= 8.5 m`
area of verandah = area of house `-` area of room
area of verandah = `(10 xx 8.5) - (5.5 xx 4)`
`= 85 - 22 = 63 m^2`
cementing cost of `1m^2` is = `200 rs`
cementing cost of `63m^2`= `200 xx 63`
`= 12600 rs`
answer


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