Two classes took the same test. One class of 25 students made an average grade of 82%, the other class of 32 students made an average grade of 75%. The average grade for all students in both classes is approximately:

The average earning of Mr.Kumar for the initial three months of the calendar year 2002 is Rs. 1337. If his average earning for the second and third month is Rs. 1423 find his earning in the first month?

The average salary per head of the entire members including employees and workers is Rs. 120. The average salary per head of the employee is Rs. 460 and that of workers is Rs. 110. If the number of employees is 15, find the number of workers in the office.

The average age of group of 16 students is 20 years. If 4 more students join the group, the average age rises by 2 years. The average age of the new students is:

The average expenditure of a man for the first seven months is Rs. 140 and for the next five months it is Rs. 110. If he saves Rs. 330 in that year, his monthly average income is :

The mean of 40 observations is 75. It was noticed that one reading was misread as 60 instead of 90. What is the correct mean?

The average temperature in the month of April is 30o C, that of first 10 days is 28o C and that of next 15 days is 31o C. What is the average temperature of last 5 days?

Virendra Sehwag has a certain average for 11 innings. In the twelfth innings, he scores 132 runs thereby increasing his average by 10 runs. His new average is -

If a, b, c, d, e are five consecutive odd numbers, their average is:

The average weight of 12 students is reduced by 1 kg when one of them weighing 48 kg was replaced by a new student. Find the weight of the new student.

In a class of 20 students, average mark obtained by them is 68. If the marks of two students were misread as 68 and 49 instead of the actual marks 86 and 60 respectively, what would be the correct average?

The average temperature for Wednesday, Thursday and Friday was 39 °C. The average for Thursday, Friday and Saturday was 42 °C, what is the difference in temperatures on Saturday and Wednesday?

The average of 4 consecutive odd positive integers is 16. The product of the smallest and largest positive odd integer is

In a TV factory, an average of 65 TVs are produced per day for the first 20 days of the month. A few workers fell ill for the next ten days, reducing the daily average for the month to 56 sets per day. The average production per day for the last 10 days is :

The average age of seven girls sitting in a row facing south is 24 years. If the average age of first three girls is 20 years and the average age of last three girls is 28 years, what is the age of the girl who is sitting in middle of the row?

The average weight of 3 men A, B and C is 96kg. Another man D joins the group and the average now becomes now 88 kg. if another man E, whose weight is 4 kg more than that of D, replace A, then the average weight B, C, D and E becomes 82 kg. The weight of A is:

Of the three numbers, the average of the first and the second is greater than the average of the second and the third by 50. What is the difference between the first and the third of the three numbers?

There are three persons out of which the first person is half the age of second and twice the age of third person. If the average of their ages is 21, find the age of the eldest person.

A man walked at a speed of 6 km/h from point A to B and came back from point B to A at the speed of 8 km/h. Find the ratio between the time taken by him in walking from point A to B to point B to A respectively.

The average age of a family of 5 members is 25 years. If the age of the youngest member be 9 years. Just before the birth of the youngest member, the average age of the family was: (in years)

The average of x, y and z is 50. x is as much more than the average as y is less than the average. Find the value of z.

The average of 10 consecutive terms of an arithmetic progression with common difference of 10 is 100. How will the average be affected if the next two terms of A.P. are also included?

The average income of Rahim and Shubham is Rs. 300. The average income of Amit and Ranit is Rs. 200. The average income of Rahim, Shubham, Amit and Ranit is

If A = 1/5 and B = 1/8 and the average of A, B and C is 9/40. What is the value of C given that A, B and C are three rational numbers?

The average weight of three men A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A, then the average weight of B, C, D and E becomes 79 kg. The weight of A is:

Ashwin’s bowling average is 12.4. He takes 5 wickets for 26 runs and thereby his average decreases by 0.4. The number of wickets, taken by him, before his last match is

The average salary in an industry having a staff of 16 engineers and 30 clerks is Rs. 750. The average salary of engineers is Rs. 1200. Find the average salary of clerks.

The average marks of 10 students on a class are 85. When the highest and the lowest marks are dropped, the average becomes 84. If the highest marks are 95, then find out the lowest marks.