A room is $13 m$ long and $9 m$ broad, then the cost of carpeting the room at the rate of $R s . 6.40$ per sq. metre is _______.

R s . 900.00

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R s . 1000.00

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R s . 748.8

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R s . 998.40

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Solution

The correct option is C $R s . 748.8$
Area of floor of room $= 13 \times 9 = 117 m^{2}$

Cost of carpeting per sq. metre $=$ Rs. $6.40$
$∴$ Total cost $= 6.40 \times 117 = 748.8$

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