The weight of 15 bag of rice is 460 kg. Find (a)the weight of 3 bags of rice (b) how many bags will weigh 644 kg?
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Answer:
a) the weight of 3 bags of rice is 92 kg
b)21 bags contain 644 kg rice
Explanation:
a) weight of 15 bags of rice = 460 kg
weight of 1 bag of rice = 460/15=92/3 kg
weight of 3 bags of rice = 92/3 × 3 =92 kg
b) 92/3 kg rice is in = 1 bag
1 kg rice is in = 1/(92/3) = 3/92
644 kg rice will be in = (3/92)×644=21 bags
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