Average of six numbers is 32 . If each of first three numbers is increased by 2 and each of remainin

English

Gujarati

Hindi

4.Average

medium

The average of six numbers is $32 .$ If each of the first three numbers is increased by $2$ and each of the remaining three numbers is decreased by $4,$ then the new average is ?

A

$35$

B

$34$

C

$31$

D

$30$

Solution

Total sum of all six numbers $=32 \times 6=192$

According to the question

New sum $=192+3 \times 2-3 \times 4=186$

Required Average $=\frac{186}{6}=31$

Standard 13

Quantitative Aptitude

Share

Similar Questions

The average weight of $4$ men $A, B, C$ and $D,$ is $67\, kg.$ The $5^{th}$ man $E$ is included and the average weight decreases by $2 \,kg$. A is replaced by $F.$ The weight of $F$ is $4 \,kg$ more than $E$. Average weight deereases because of the replacement of $A$ and now the average weight is $64\, kg.$ Find the weight of $A ?$

easy

The average of husband, wife and their child $3\, years$ ago was $27\, years$ and that of wife and the child $5\, years$ ago was $20\, years.$ The present age of the husband is (in $years$)

medium

The average weight of $15$ oarsmen in a boat is increased by $1.6\, kg$ when one of the crew, who weighs $42\, kg$ is replaced by a new man. Find the weight of the new man (in $kg$)

medium

The average of first $46$ natural number is

easy

In a coconut grove, $(x+2)$ trees yield $60$ $nuts$ per $year,$ $x$ trees yield $120\, nuts$ per $ year,$ and $(x-2)$ trees yield $180 \,nuts$ per $year$. If the average yield per $year$ per tree be $100,$ find the value of $x .$

easy