3 , text{years} ago,the average age of a fami | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The sum of the ages of $5$ members $3 \, 	ext{years}$ ago was $17 	imes 5 = 85 \, 	ext{years}$.The current sum of the ages of these $5$ members

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(A) The sum of the ages of $5$ members $3 \, 	ext{years}$ ago was $17 	imes 5 = 85 \, 	ext{years}$.The current sum of the ages of these $5$ members is $85 + (3 	imes 5) = 85 + 15 = 100 \, 	ext{years}$.The current average age of $6$ members (including the baby) is $17 \, 	ext{years}$.Therefore,the current total sum of the ages of $6$ members is $17 	imes 6 = 102 \, 	ext{years}$.The age of the new baby is the difference between the total sum of $6$ members and the total sum of the original $5$ members: $102 - 100 = 2 \, 	ext{years}$.

$3 \, \text{years}$ ago,the average age of a family of $5 \, \text{members}$ was $17 \, \text{years}$. With the birth of a new baby,the average age of the $6 \, \text{members}$ remains the same even today. Find the age of the new baby in years.

Similar Questions

The average salary of $20$ workers in an office is $Rs. 1900$ per month. If the manager's salary is added,the average becomes $Rs. 2000$ per month. The manager's annual salary (in $Rs.$) is

Average age of $15$ students of a class is $15 \text{ years}$. Out of these,the average age of $5$ students is $14 \text{ years}$ and that of the other $9$ students is $16 \text{ years}$. The age of the $15^{th}$ student is (in $\text{years}$):

The average of the first $25$ numbers is $10$ and the average of the next $25$ numbers is $12$. The average of all $50$ numbers is:

An aeroplane travels $2500 \, km$,$1200 \, km$,and $500 \, km$ at $500 \, km/h$,$400 \, km/h$,and $250 \, km/h$ respectively. The average speed is (in $km/h$):

The average of $7$ numbers is $5$. If the average of the first six of these numbers is $4$,the seventh number is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module