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Answer»

Solution

Cost PER square metre

Rate of painting = 6400

Rate of TILING = $\frac{125}{100} * 6400$ = 8000

Rate of CARPETING = $\frac{120}{100} * 8000$ = 9600

Rate of decorating = 14 * 9600 = 134400

Rate of electrification = $\frac{75}{100} * 9600$ = 7200

Now, total cost :

Carpeting = 6 * 6 * 9600 = Rs. 345600

Decoration = 6 * 6 * 134400 = Rs. 4838400

Electrification = 6 * 6 * 7200 = Rs. 259200

Tiling = 6 * 6 * 8000 = Rs. 288000

$\therefore$ total cost = 345600 + 4838400 + 259200 + 288000 = Rs. 5731200



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