Average Quiz Quantitative Aptitude Quiz for IBPS , SBI , RBI Prelims | Quiz – 3

Age Based Quiz Quantitative Aptitude Quiz for IBPS , SBI , RBI Prelims : Quiz – 3

Questions based on Average are seen in numerous competitive examinations. Candidates must be familiar with the method required to solve the questions on Average. In this article, we have come up with the Average Based Quiz to enhance your preparation for upcoming exams. This Average Based Quiz includes all of the most recent pattern-based questions, as well as Previous Year Average Questions from the IBPS, SBI, and RBI PO and Clerk exams. This Average Based Quiz is available to you at no cost. This Average Based Quiz contains a detailed explanation for each question. This Average Based Quiz can assist you in your preparation for upcoming exams like banking, insurance, SSC, and railway.

1. The average marks of science subject of a class of 20 students is 68. If the marks of two students were misread as 48 and 65 instead of the actual marks 72 and 61 respectively, what would be the correct average?
(a) 68.5
(b) 69
(c) 69.5
(d) 70
(e) 66

Answer & Explanation

2. A student finds the average of five two digits numbers. If One number is reversed and the average is taken again then the average increase by 5.4. If all five digits are consecutive multiple of four, then find the number which is reversed?
(a) 58
(b) 36
(c) 74
(d) 48
(e) None of these

Answer & Explanation

3. The average age of a group of six children is 15 years. From the group, two children, whose ages were 3 years more and 5 years more than the average age, left. 4 new children, whose average age is 4 years more than the given average age, join the group. Find the new average age.
(a) 15 years
(b) 16 years
(c) 17 years
(d) 18 years
(e) 12 years

Answer & Explanation

4. The average of 8 no’s is 20. The average of 1st two no’s is 15.5 & that of next three no’s is 21 1/3 .If the 6th number be less than the seventh &eighth number by 4 & 7 respectively, then find eight number.
(a) 16
(b) 20
(c) 25
(d) 18
(e) 13

Answer & Explanation

5. There are four friends. The average score in unit test of the first three is 15 and that of the last three is 16. If the score of the last friends is 19, then first friend’s score is what per cent of the total score of last three?
(a) 200/3%
(b) 300%
(c) 100/3%
(d) 40%
(e) None of these

Answer & Explanation

6. The average weight of a group of 45 girls was calculated as 67 kgs. It was later discovered that the weight of one of the girls was read as 45 kgs., whereas her actual weight was 55 kgs. What is the actual average weight of the group of 45 girls? (Rounded off to two-decimal places)
(a) 68.10
(b) 67.36
(c) 68.16
(d) 67.22
(e) None of these

Answer & Explanation

7. In a class the average age of 40 students is 15 years. If 10 new students include then the average age of students increase by 0.2, find the average age (in years) of new students.
(a) 16 yr
(b) 20 yr
(c) 17 yr
(d) 19 yr
(e) 18 yr

Answer & Explanation

8. The average weight of 5 men is decreased by 3 kg when one of them weighing 150 kg is replaced by another person. This new person is again replaced by another person whose weight is 30 kg lower than the person he replaced. What is the overall change in the average due to this dual change?
(a) 6 kg
(b) 9 kg
(c) 12 kg
(d) 15 kg
(e)None of these
Answer & Explanation
Ans. b
Exp. The weight of the second man is 135 and that of the third is 105.
Hence, net result is a drop of 45 for 5 people. Hence, 9 kg is the drop.

9. In a family of 5 members, the average age at present is 33 years. The youngest member is 9 years old. The average age of the family just before the birth of the youngest member was
(a) 30 years
(b) 29 years
(c) 25 years
(d) 24 years
(e) None of these

Answer & Explanation

10. In a class of 42 students, the average age of all students is 16 years. Due to admission of 6 new students in the class the average age increases by ½ years. Find the average age of new students admitted.
(a) 20 years
(b) 22 years
(c) 18 years
(d) 24 years
(e) None of these

Answer & Explanation

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