The average weight of there boys P, Q, & R is 54 kg while the average weight of three boys Q, S, & T is 53 kg what is the average weight of P, Q, R, S, & T ?

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53.8

Data inadequate

answer is D.

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Detailed Solution

Concept- We are aware of the weight ranges of three males, P, Q, and R. So, we can get the combined weight of the three guys, P, Q, and R. From this average weight, which is all we have, we may also get the combined weight of the three males Q, S, and T. From these values, we can calculate the average weight of P, Q, R, S, and T.
Average weight of three boys

Total weight of three boys

Also given that:
Average that three boys Q, S, T
Total weight of three boys

Total weight of three boys

(ii)
We will add both (i) & (ii)

i.e.

(i)

gives

To find the average weights of P, Q, R, S, T i.e.
we need to find

But we know

To determine the average weight of, we must first know each individual's weight.

Data given is insufficient.
Hence, the correct answer is option 4.

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