MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Arithmetic Mean

The average a...

Question

The average age of a jury of 5 is 40 years. If a member aged 35 resigns and a man aged 25 becomes a member, then the average age of the new jury is:

Open in App

Solution

Total of ages of jury of 5 = 40 x 5 = 200
A member resigns the total reduces = 200 – 35 = 165
When a new member joins, the total increases = 165 + 25 = 190
Average age of the new jury is
= 190/5
= 38.

Suggest Corrections

thumbs-up

4

Similar questions

Q. The acerage age of 8 members of a committee is 40 years. A member of 55 years age retires and a man of age 39 years becomes a new member. The average age of the new committee member is

Q. The average age of

12

members of a committee is

56

years. Two members whose age were

60

52

years respectively have died. The average age of other members is

Q. The pie-chart above shows the distribution of registered voters, by age, for a community. Registered voters are randomly selected from this distribution to be called for jury duty. What are the odds (in the age range:not in the age range) that the first person called for jury duty is in the age range of 25-35 years?

Q. The average age of Tom's 5 family members excluding Tom is 35. Tom is 5 years old, average age of his family including him is .

Q. In a club, the average age of the members is 30 years, the average age of the male members is 34 years and that of the female members is 26 years. The percentage of male members is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Arithmetic Mean

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Arithmetic Mean

Standard VII Mathematics

Join BYJU'S Learning Program

CrossIcon