# The average age of persons going for a trip is 16.75 years. 20 new per

| The average age of persons going for a trip is 16.75 years. 20 new persons with an average of 13.25 years join the group on the spot due to which the average group becomes 15 years. Find the number of persons initially going to to trip.

A. 24

B. 20

C. 15

D. 18

### Right Answer is: B

#### SOLUTION

Let the number of persons initially going for picnic be x.

So, the age of x people becomes = 16.75 × x

And since 20 people are added to the trip then the

Age of 20 people becomes = 20 × 13.25

So according to the question:

So total no of people is 20.

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The average age of persons going for a trip is 16.75 years. 20 new per