Embibe Experts Solutions for Chapter: Arithmetic, Exercise 7: Exercise 7

The average of $5$ consecutive integers starting with '$n$' is '$m$'. What is the average of $6$ consecutive integers starting with $n + 2$?

A batsman scores some runs in his ${51}^{\mathrm{st}}$ completed inning so that his average increases from $59.6$ to $60$. The runs scored by the batsman in his ${51}^{\mathrm{st}}$ inning are?

There are four friends. The average score in the unit test of the first three is $15$ and that of the last three is $16$. If the score of the last friend is $19$, then first friend's score is what per cent of the total score of last three friends?

The average mark secured by $36$ students was $52$. But is was discovered that an item $64$ was misread as $46$. What is the correct mean of marks?

The average monthly salary paid to 75 employees in a company is Rs. 1420. The average salary of 25 of them is Rs. 1350 and that of 30 others is Rs. 1425. The average salary of the remaining employees is—

In a village, the average age of n people is $42$ years. But after the verification, it was found that the age of a person had been considered $20$ years less than the actual age, so the new average, after the correction, increased by $1$. The value of $\mathrm{n}$ is

The average age of $18$ pupils of Dronacharya was $25$ years. If the age of Dronacharya was also included, the average age of $19$ people becomes $26$ years. Then the age of the Dronacharya at that time was:

The average weight of $40$ children of a class is $36.2 kg$, when three more children with weights $42.3$kg., $39.7$kg. and $39.5$kg join the class, then average weight of children in the class is -