Arihant Expert Team Solutions for Exercise 1: Practice Exercise

A company has $600$ men and $400$ women as employees and the average wage was $Rs. 2.55$ per day. If a woman got $50$ paise less than a man, what were their daily wages?

The average runs scored by a cricketer in $42$ innings, is $30$. The difference between his maximum and minimum scores in an inning is $100$. If these two innings are not taken into consideration, then the average score of remaining $40$ innings is $28$. Calculate the maximum runs scored by him in an innings?

A cricketer whose bowling average is $12.4$ runs per wicket takes $5$ wickets for $26$ runs and thereby decreases his average by $0.4$. Find out the number of wickets taken by him till the last match.

The average runs of a cricket player of $10$ innings was $32$. How many runs must be scored in the next inning so as to average of runs by $4$?

A tabulator while calculating, the average marks of $100$ students of an examination, by mistake enters $68$, instead of $86$ and obtained, the average as $58$; the actual average marks of those students is:

Ram aims to score an average of $80$ marks in quarterly and half-yearly exams. But his average in quarterly is marks $3$ less than his target and that in half-yearly is $2$ marks more than his aim. The difference between the total marks scored in both the exams is $25$. Total marks aimed by Ram is:

A library has an average of $510$ visitors on Sunday and $240$ on other days. The average number of visitors per day in a month of $30$ days beginning with Sunday is:

In a family, the average age of father and a mother is $35$ years. The average age of the father, mother and their only son is $27$ years. What is the age of the son?