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Question

Dev and Ben bought 212 kg and 314 kg of sugar, respectively. If sugar costs ₹32 per kg, what is the total amount they would have to pay?​

A
₹156
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B
₹132
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C
₹164
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D
₹184
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Solution

The correct option is D ₹184
Converting into improper fraction: 212=(2×2+1)2=52

Converting into improper fraction: 314=(3×4+1)4=134

LCM of 2 and 4 is 4. Hence,​
52×22=104

Adding both fractions: 104+134=234

Total cost of sugar =234×32=23×8
= ₹ 184

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