Four mark exercise problems V — task. Mathematics State Board, Class 7.

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A canal of width

$1 \ m$ is constructed all along inside the field which is

$24 \ m$ long and

$15 \ m$ wide. Find:

(a) The area of the canal

$=$

$m^2$

(b) The cost of constructing the canal at the rate of

$₹12$ per

$sq.m = ₹$

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