The average weight of 10 persons increases by 2.5 kg when a new person comes in place of one of them weighing 62 kg. What is the weight of the new person?

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Solution

The correct option is B
87

Total increase in weight =10 $\times$ 2.5= 25

If x is the weight of the new person, total increase in weight = x - 62

$\Rightarrow$ 25 = x - 62

$\Rightarrow$ x = 25 + 62 = 87

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The average weight of 10 persons increases by 2.5 kg when a new person comes in place of one of them weighing 62 kg. What is the weight of the new person?

The correct option is B 87 Total increase in weight =10×2.5= 25 If x is the weight of the new person, total increase in weight = x - 62 ⇒ 25 = x - 62 ⇒ x = 25 + 62 = 87

The correct option is B
87

Total increase in weight =10 $\times$ 2.5= 25

If x is the weight of the new person, total increase in weight = x - 62

$\Rightarrow$ 25 = x - 62

$\Rightarrow$ x = 25 + 62 = 87