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Mean

The average w...

Question

The average weight of the five persons sitting in a boat is 38 kg. The average weight of the boat and the persons sitting in the boat is 52 kg. What is the weight of the boat?

A

228 kg

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B

122 kg

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C

232 kg

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D

242 kg

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Solution

The correct option is B 122 kg
Weight of the boat $= 6 \times 52 - 5 \times 38$
$= 312 - 190 = 122 k g$

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