Bankers’ Bounty Quantitative Aptitude – Averages

Bankers Bounty Quantitative Aptitude

Dear Mockbankers

Today in Banker’s Bounty, you will get Averages concepts and questions from previous year’s papers.

Step 1: Watch the video prepared by MockBank’s expert.

Step 2: Read the basic concepts that follow.

Step 3: Put a timer before you solve the previous year questions on decimal and fraction in quiz and record how much time it takes you to solve it.

Step 4: Send us questions in comments section below which took maximum time and we will tell you a faster way to solve it.

Suppose there are N numbers, then their average is their sum divided by that is,

Average=(sum / N)

Weighted Average: The average between two sets of numbers is closer to the set with more numbers.
if 3 batsmen scored 25 runs and 2 batsmen scored 35 runs the average of the team won’t be 30. Rather it will be
= (25×3 + 35×2 )/5 = 29 . This is nearer to 25 since more batsmen scored 25 runs.

1. If 39a + 39b = 4836, what is the average of a and b?

Question 1 of 10

2. The average weight of a class of 20 students is 45 kgs. A new students whose weight is 40 kgs replaces an old students of this class. Hence, the average weight of the whole class decreases by 1 kg. The weight of the replaced students :

Question 2 of 10

3. The average length of first 3 fingers is 3 inches and the average length of the other 2 fingers i.e., thumb and the index finger is 2.8 inches. If the length of the index fingers is 3 inches then length of the thumb is:

Question 3 of 10

4. 123 typists typed 984 papers in 1/15 hour. The number of papers typed per minute by an average typist is :

Question 4 of 10

5. The average of 3 prime numbers lying between 47 and 74 is 191/3. The greatest possible difference between any two out of the 3 prime numbers is :

Question 5 of 10

6. The average of 9 numbers is 11. If each of these 9 numbers is multiplied by 5 and then 5 is added to each of these resultant numbers, then the new average is :

Question 6 of 10

7. The average score of Dhoni after 48 innings is 48 and in the 49th innings Dhoni score 97 runs. In the 50th innings what is the minimum number of runs required to increase his average score by 2 than it was before the 50th innings.

Question 7 of 10

8. The average age of Sachin and Ganguli is 35 years. If Kaif replaces Sachin, the average age becomes 32 years and if Kaif replaced Ganguli, then the average age becomes 38 years. If the average age of Dhoni and Irfan be half of the average age of Sachin, Ganguli and Kaif, then the average age of all the five people is :

Question 8 of 10

9. Out of the five people (in question no. 10) whose age is the greatest ?

Question 9 of 10

10. In a village the average age of n people is 42 years. But after the verification it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after the correction, increased by 1. The value of n is

Question 10 of 10


  • Deepika Das

    how to solve 4th and 7th ques of average

  • Saby

    Solutions and the problems are not matching!!!! Plz rectify it!!