Question

A verandah 2.50 m wide is constructed all along the outside of aroom 7.5 m long and 6 m wide .find the cost of cementing the floor of this verandah at the rate of $15 per sq. M.

Answer 1

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Area of the room= length×breadth

                          =7.5×6=45 sq.m

Length of the room including verandah=8+2.50+2.50=13m

Breadth of the room including verandah=5+2.50+2.50=10m

Hence,Area of the room including verandah=13×10=130 sq.m

∴,the area of the verandah is=(area of the room including verandah-area of the room)

=130-45 =85 sq.m

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Answer 2

Answer:

2062.5

Step-by-step explanation:

length of room = 7.5m

bredth of room = 6m

area of room =l*b

=7.5*6=45

l of verandah = 7.5+2.50+2.50

=12.5m

b of verandah=6m+2.50+2.50

=11m

area verandah is = 12.5*11

=137.5m

the cost of cementing flooor with verandah = 137.5*15=2062.5