Question

(1)
3,900
3,010
14
A rectangular garden is 185 m long and 220 m wide. It has two roads in its centre of
uniform width of 4 m, one parallel to its length and the other parallel to its breadth.
Find the cost of levelling the roads at 1.25 per sq.m.

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Answer 1

Answer:

Answer

Analyse the problem.

We see that the total road to be levelled= horizontal road+vertical road-the common portion to both.

Area of horizontal road= 225m×5m=1125m

2

Area of vertical road=175m×5m=875m

2

Area of common portion: 5m×5m=25m

2

Thus total area:(1125+875−25)m

2

=1975m

2

Rate: Rs.3 per m

2

So, total cost=1975m

2

×Rs.3 per m

2

=Rs.5925