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Twenty new persons with an average age of 15 years join the group on the spot due to which their average age becomes 15.5years.

The number of persons initially going for picnic is

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The average age of a group of persons going for picnic is 16

The average age of seven persons sitting in a row facing eas

The average age of seven persons sitting in a row facing eas

A number of friends decided to go on a picnic and planned to

The average age of a couple and their son was 40 years, the

The average age of a group of 12 students is20years.

If 4 m

If 4 m

The average age of 120 members of a society is 60.7years.

B

B

Nine years later, age of B will be equal to the present age

Question In a cricket team, the average age of eleven player

In a cricket team, the average age of eleven players in 28 y