Arihant Expert Team Solutions for Exercise 2: PRACTICE QUESTIONS for Phase I

The average temperature of the first three days ${22}^{°}C$ and that of the next three days is $24°C$ the average for the whole week is $23.5°C$, the temperature of the last day of the week is:

There are $70$ students in a hostel. If $14$ students increased, then the total expenditure increased by $Rs. 84$ but the average expenditure decreased by $Rs. 2$. Find the total expenditure originally. 

The average speed of bus for the first $150$ km is $30$ km/h, the next $50$ km is $25$ km/h and the last $30$ km is $10$ km/h. Find the average speed of the bus for the entire journey. 

The average age of a family of $6$ members is $25$ years. If the age of the youngest member be $5$ years. Find the average age of the family at the birth of the youngest member. 

The average age of three boys is $12$ yr. If their ages are in the ratio of $2:3:4$, the age of the eldest boy is-

Sum of eight consecutive numbers of set A is $376$. What is the sum of five consecutive numbers of another set if its minimum number is $15$ ahead of average of set A?

The average monthly salary of the employees of a firm is $Rs 3000$. Out of the employees, $12$ officers get an average of $Rs 5000$ per month and the rest an average of $Rs 2000$ per month. Find the total number of employees. 

A company employed $600$ men and $400$ women, their average wage was $Rs 68$ per day. If a women gets $Rs 30$ less than a man , what is the average wage of a woman ?