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Answer»

Solution

Cost per square metre,

Rate of painting = 3200

Rate of tiling = $\frac{125}{100} * 3200$ = 4000

Rate of CARPETING = $\frac{120}{100} * 4000$ = 4800

Rate of decorating = 14 * 4800 = 67200

Area of the 4 walls = 2 * 5 * (6 + 6) = 120 SQ. metre

Area of the floor = 6 * 6 = 36 sq. metre

=> Expenditure on decoration = 36 * 67200 = 2419200

Expenditure on painting = 120 * 3200 = 384000

$\therefore$ REQUIRED ratio = 384000 : 2419200 = 10 : 63



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