Untitled

 2 mark

| -0.25 mark |

 60 minutes

Question 1:

There are two numbers such that the first number is three times of the second number. If the average of these two numbers is 72, then what is the first numbers?

Question 2:

There are two numbers such that the first number is four times of the second number. If their average is 65, then what is the second number?

Question 3:

The average of three numbers is 50. The first number is 20 less than the second number, and the third number is 30 more than the second number. What is the second number?

Question 4:

The first number is one-third of the second number. The second number is 1.5 times of the third number. The third number is three times the fourth number. If the average of the four numbers is 10, find the largest of the number?

Question 5:

The average of the three numbers is 70. If the ratio of the first and second number is 5:6 and the ratio of second and the third number is \(3:5\), then what is the smallest number among three numbers?

Question 6:

The average of three numbers is 99. If the ratio of the first and second number is \(4:5\), and the ratio of the second and third number is \(2:3\), what is the smallest number among the three numbers?

Question 7:

A class of 100 students has an average age of 20 years. If the average age of the students who passed is 23 years, and the average age of the students who failed is 18 years, what is the ratio of the total number of the passed students to the total number of the failed students?

Question 8:

The average salary of 80 employees in a company is ₹ 40,000. If the average salary of the employees who received promotions is ₹ 50,000 and the average salary of the others is ₹ 30,000, what is the ratio of the total salary of promoted employees to the total salary of the non-promoted employees?

Question 9:

The average monthly salary of workers in a factory is ₹ 6,000. The average monthly salary of 100 technicians is ₹ 12,000, and the average monthly salary of non-technicians is ₹ 4,000. Find the total number of workers in the factory?

Question 10:

The average marks obtained by 120 students in an examination is 50. If the average marks of passed students is 70 and average marks of the failed students is 30, then what is the number of students who passed the examination?

Question 11:

The average score in a test for 50 students is 44. Out of the total students, \(40\%\) of the students are girls and the rest are boys. The average score of boys is \(20\%\) less than that of girls. What is the average score of girls?

Question 12:

The average age of 120 students in a group is 13.56 years, \(35\%\) of the number of students are girls and the rest are boys. If the ratio of the average age of boys and girls is \(6:5\), then what is the average age (in years) of the girls?

Question 13:

The data from a village is collected regarding the weight of people. The average weight of men in the village is 60 kg and average weight of the women is 45 kg . If there are 50 more men than women and total population of the village is 300 . What is the difference between the total weight of men and the total weight of women in the village?

Question 14:

The bowling average of a bowler is 16.2 runs per wicket. He took 5 wickets in his next innings by giving 23 runs and due to this his bowling average improved by 0.4 run per wicket. Find the total number of wickets taken by him till date?

Question 15:

Practicum: A cricketer's bowling average is 9.5 runs per wicket. In the next match, he takes 3 wickets for 19 runs. His bowling average after this match improves by 0.1 runs. The number of wickets taken by him before this match is?

Question 16:

There are 42 students in a hostel. 14 more students joined and the expenditure has been increased by Rs 14 a day. The average expenditure has decreased by Rs 2 per day. What was the original expenditure?