RPH Editorial Team Solutions for Exercise 1: EXERCISE

The average weight of $8$ persons is increased by $2.5 kg$ when one of them whose weight is $56 kg,$ is replaced by a new man The weight of new man is?

Find the average of consecutive natural numbers from $1$ to $49$ :

Raju’s average daily expenditure during September is $Rs.15$, during October is $Rs. 20$, and during November is $Rs.13$. What is the average daily expenditure for the three months?

The average of the first five multiples of $3$ is:

If the difference between the ages of Ritu and Ram is $15$ years, and the ratio of their ages is $3 : 2$, then the age of Ram is_________.

The sum of the ages of husband and wife is $70$ years and ratio of their ages is $3 : 2$. The age of wife is:

The average score of a cricketer for$10$  matches is $49.9$ runs. If the average for the first six matches is $49$, then what is the average score for the last $4$ matches?

The present age difference between father and son is $14$ years. The ratio of their ages will be $4 : 3$ after $11$ years. How old is the son now?