The cost of $3 k g$ of rice is $₹ 120$ . What will be the cost of $8 k g$ of rice $?$

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Solution

The cost of $3 k g$ of rice $= ₹ 120$
The cost of $1 k g$ of rice $= \frac{120}{3}$
$= ₹ 40$
The cost of $8 k g$ of rice $= 8 \times 40$
$= ₹ 320$
Hence, the cost of $8 k g$ of rice is $₹ 320$ .

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