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The average weight of A, B and C is 45 kg. If the average weight of A and B is 40 kg and that of B and C is 43 kg, then the weight of B is .

The average weight of A, B and C is 45 kg. If the average weight of A and B is 40 kg and that of B and C is 43 kg, then the weight of B is . Correct Answer 31 kg

A, B ও C এর গড় ওজন = 45 কেজি৩ জনের ওজনের যোগফল = (45x3) = 135 কেজিA ও B এর গড় ওজন = 40 কেজিA ও B এর ওজনের যোগফল = (40x2) = 80 কেজিB ও C এর গড় ওজন = 43 কেজিB ও C এর ওজনের যোগফল = (43x2) = 86 কেজিA, B ও B, C এর ওজনের যোগফল = (80+86) = 166 কেজিযেহেতু, ৩ জনের ওজনের যোগফল = 135 কেজি ও A, B ও B, C এর ওজনের যোগফল = 166 কেজি,সুতরাং, B এর ওজন = (166-135) = 31 কেজি

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