Average Exercise 3

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 a target of 282 runs?

A batsman in his 12th innings makes a score of 65 and thereby increases his average by 2 runs. What is his average after the 12th innings if he had never been ‘not out’?

A cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him till the last match was:

A batsman makes a scores of 98 runs in his 19th inning and thus increases his average by 4. What is his average after 19th inning?

A batsman has scored an average of 46 runs for a certain number of innings played in England. When he came back to India, he played another two test matches of two innings each and scored at an average of 55 runs. For the innings in England and in India taken together, he has improved his average by 2 runs over the matches played in England. Find the number of innings played in England.

N number of persons decide to raise ₹3 lakhs by equal contributions from each. If they contributed ₹50 each extra, the contribution would be ₹3.25 lakhs. How many persons are there?

Nine persons went to a hotel for taking their meals. Eight of them spent ₹12 each on their meals and the ninth spend ₹8 more than the average expenditure of all the nine. What was the total money spent by them?

30 pens and 75 pencils were purchased for ₹510. If the average price of a pencil was ₹2.00, find the average price of a pen.

The average number of printing error per page in a book of 512 pages is 4. If the total number of printing error in the first 302 pages is 1,208, the average number of printing errors per page in the remaining pages is

The average expenditure of a labourer for 6 months was ₹85 and he fell into debt. In the next 4 months by reducing his monthly expenses to ₹60 he not only cleared off his debt but also saved ₹30. His monthly income is

In a coconut grove, (x + 2) trees yield 60 nuts per year, x trees yield 120 nuts per year and (x – 2) trees yield 180 nuts per year. If the average yield per year per tree be 100, then x is

Nine men went to a hotel. 8 of them spent ₹3 each over their meals and the ninth spent ₹2 more than the average expenditure of all the nine. The total money spent by all of them was

There were 35 students in a hostel. Due to the admission of 7 new students, the expenses of mess were increased by ₹42 per day while the average expenditure per head diminished by Re 1. What was the original expenditure of the mess?

In an engineering college the average salary of all engineering graduates from Mechanical trade is ₹2.45 lacs per annum and that of the engineering graduates from Electronics trade is ₹3.56 lacs per annum. The average salary of all Mechanical and Electronics graduates is ₹3.12 lacs per annum. Find the least number of Electronics graduates passing out from this institute.

The average monthly sales for the first eleven months of the year of a certain salesman were ₹12000, but due to his illness during the last month, the average monthly sales for the whole year came down to ₹11375. What was the value of sales during the last month?

Directions (Q. 63-65) : There are 60 students in a class. These students are divided into three groups A, B and C of 15, 20 and 25 students each. The groups A and C are combined to form group D. What is the average weight of the students in group D?

Directions (Q. 63-65) : There are 60 students in a class. These students are divided into three groups A, B and C of 15, 20 and 25 students each. The groups A and C are combined to form group D. If one student from Group A is shifted to group B, which of the following will be true?

Directions (Q. 63-65) : There are 60 students in a class. These students are divided into three groups A, B and C of 15, 20 and 25 students each. The groups A and C are combined to form group D. If all the students of the class have the same weight, then which of the following is false?

Directions (Q. 66 - 67) : Five heavy weight boxers measure their weights. Following results were obtained :

P is heavier than R by 14 LB. B is lighter than S by 10 LB. M’s weight is equal to the average weight of the four other boxers. P’s weight and B’s weight taken together equals the weight of M and S. The sum of the weights of all five boxers is 520 LB.

What is the average of the weights of M and R?

Directions (Q. 66 - 67) : Five heavy weight boxers measure their weights. Following results were obtained :

P is heavier than R by 14 LB. B is lighter than S by 10 LB. M’s weight is equal to the average weight of the four other boxers. P’s weight and B’s weight taken together equals the weight of M and S. The sum of the weights of all five boxers is 520 LB.

What is the average of the weights of P, S and B?