Question 142

The average weight of 17 boxes is 92kg. If 18 new boxes arc added, the new average increases by 3kg. What will be the average weight of the 18 new boxes ?

Solution

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Let average weight of 18 new boxes be 'p'.
According to question,
$$\frac{17\times92+18\times{p}}{18+17}=95$$.
$$18\times{p}=95\times35-92\times17$$.
$$p=97.8$$.
Hence, Option B is correct.

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