Average Worksheet-3

Average Worksheet-3

The average age of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 14 students?

(a) 15 years (b) 17 years (c) 18 years (d) 19 years

16 children are to be divided into two groups A and B of 10 and 6 children. The average percent marks obtained by the children of group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of group B?

(a) (b) (c) (d)

The average score of a cricketer for ten matches is 38.9 runs. If the average for the first six matches is 42, then find the average for the last four matches.

(a) 33.25 (b) 33.5 (c) 34.25 (d) 35

The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers?

(a) 4.5 (b) 4.6 (c) 4.7 (d) 4.8

The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded, the average of the remaining 38 innings is 48 runs. The highest score of the player is:

(a) 165 runs (b) 170 runs (c) 172 runs (d) 174 runs

The average price of 10 books is Rs. 12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?

(a) Rs. 5, Rs. 7.50 (b) Rs. 8, Rs. 12

The average of runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4?

(a) 2 (b) 4 (c) 70 (d) 76

A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500?

(a) Rs. 4991 (b) Rs. 5991 (c) Rs. 6001 (d) Rs. 6991

A company produces on an average 4000 items per month for the first 3 months. How many items it must produce on an average per month over the next 9 months, to average 4375 items per month over the whole?

(a) 4500 (b) 4600 (c) 4680 (d) 4710

In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?

(a) 6.25 (b) 6.5 (c) 6.75 (d) 7

The average price of three items of furniture is Rs. 15000. If their prices are in the ratio 3 : 5 : 7, the price of the cheapest item is:

(a) Rs. 9000 (b) Rs. 15000

Of the four numbers, the first is twice the second, the second is one–third of the third and the third is 5 times the fourth. The average of the numbers is 24.75. The largest of these numbers is:

(a) 9 (b) 25 (c) 30 (d) None of these

Of the four numbers, whose average is 60, the first is one–fourth of the sum of the last three. The first number is:

(a) 15 (b) 45 (c) 48 (d) 60.25

Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of the numbers is . The numbers are:

(a) 16, 8, 4 (b) 20, 10, 5 (c) 24, 12, 6 (d) 36, 18, 9

Of the three numbers, the average of the first and the second is greater than the average of the second and the third by 15. What is the difference between the first and the third of the three numbers?

(a) 15 (b) 45

(e) None of these

Answer Key:

(1)-d; (2)-b; (3)-c; (4)-b; (5)-d; (6)-c; (7)-d; (8)-a; (9)-a; (10)-a; (11)-a; (12)-d; (13)-c; (14)-c; (15)-e