Average Mixture & Alligation Level-1 Quiz-1

1. The average height of the students in a class is 155 cm. Ifeach student’s height is 1 cm more, the average height of the students becomes(in Cms)

2. The average age of all the girls in a class of 42 students is 13 years. The average age of all the boys as well as the average age of 23 of the boys of the same class is 16 years. Which of the following could be the average age of the students in the class? (in years)

3. In what ratio should water be mixed with 80% wine so that a 60% wine solution is formed?

4. The sum of five numbers is 655. The average of the first two numbers is 85 and the third number is 125. Find the average of the last two numbers.

5. The average number of sweets with six children is six. If another child joined them the average number of sweets with the seven children will become 7. Find the number of sweets with the seventh child.

6. The average of all the even natural numbers less than 50 is?

7. The average marks scored by the girls in a class of 45 students in an exam is 90. If the number of boys in the class and their average marks in the same examination are 15 and 60, respectively, what is the average marks of all the students in the class?

8. Rahim bought 65 books for Rupees 1150 from one shop and 50 books for Rupees 920 from another shop. What is the average price he paid per book(In rupees)?

9. The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally.

10. In an office, the average salary of the male employees as well as the average salary of the female employees is Rupees 15000 per month. Find the average salary (in Rupees) per month of all the employees.