There are two coaching classes P and Q of an institute, consisting of 46 and 54 candidates respectively. If the average weight of class P is 50kg and that of class Q is 45 kg, find the average weight of the whole institute.

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There are two coaching classes P and Q of an institute, consisting of 46 and 54 candidates respectively. If the average weight of class P is 50kg and that of class Q is 45 kg, find the average weight of the whole institute.

A47.3kg

B54.8kg

C32.6kg

D25.3kg

Answer:

A. 47.3kg

Read Explanation:

Total number of candidates = 46+54=100 Weight of 46 candidates= 46*50=2300 kg Weight of 54 candidates=54*45=2430 kg Total weight of 100 candidates= 2300 kg+2430 kg=4730kg average weight of the whole institute =4730/100=47.3

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