The cost of 3 1-2 kg of rice is Rs nbsp-82 1-4 find the cost of 11 1-4 kg of rice

Dear student, Cost #160;of #160;312kg #160;or #160;72kg #160;of #160;rice=Rs #160;8214=Rs3294Cost #160;of #160;1kg #160;of #160;rice=Rs32 ...

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Standard IV

Mathematics

Conversion of Units

the cost of 3...

Question

the cost of 3 1/2 kg of rice is Rs 82 1/4 find the cost of 11 1/4 kg of rice

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Solution

Dear student,

$C o s t o f 3 \frac{1}{2} k g o r \frac{7}{2} k g o f r i c e = R s 82 \frac{1}{4} = R s \frac{329}{4} C o s t o f 1 k g o f r i c e = R s \frac{329}{4} \div \frac{7}{2} = \frac{329}{4} \times \frac{2}{7} = R s \frac{47}{2} C o s t o f 11 \frac{1}{4} k g o f r i c e = R s \frac{47}{2} \times 11 \frac{1}{4} = R s \frac{47}{2} \times \frac{45}{4} = R s \frac{2115}{8} = R s 264 \frac{3}{8} t h e r e f o r e, \cos t o f 11 \frac{1}{4} k g o f r i c e = R s 264 \frac{3}{8}$
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the cost of 3 1/2 kg of rice is Rs 82 1/4 find the cost of 11 1/4 kg of rice

Dear student, Cost of 312kg or 72kg of rice=Rs 8214=Rs3294Cost of 1kg of rice=Rs3294÷72=3294×27=Rs 472Cost of 1114kg of rice=Rs472× 1114=Rs472×454=Rs 21158=Rs 26438therefore, cost of 1114kg of rice=Rs 26438 Regards