Average Questions

An engineering student has to secure 25% marks to pass. He gets 45 and fails by 45 marks. Find the maximum marks.

The average marks obtained by Raghav in 12 tests is 24. Zubeida has maintained an average of 23 so far but has taken only 9 of the tests. If each test is out of 30, at least how much Zubeida score in any one of the remaining three tests to still have a chance to match Raghav's performance?

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 396, then what is the difference between the first and the third number?

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is

The median of the numbers 14, 12, 12, 16, 13 and 18 is

There are a total of 200 students in a school, of which 7/10th are boys. Find the number of girls in the school.

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.

The mode of the data 12, 1, 10, 1, 9, 3, 4, 9, 7, 9 is