Dear Aspirants,

Every Morning: The sun says, “Wake up like me”; The Sky says, “Aim High like me”; The Wind says, “Freshen everybody like me”. Good Morning!! Welcome to D2G’s Quantitative Aptitude Quiz on Average. This quiz consists of all types of average questions which will be asked in exams frequently.

1) A cricketer has completed 14 innings and his average is 30 runs. How many runs must he make in his next innings so as to raise his average to 32?
a)60
b)55
c)65
d)50

2) Ram bought 2 articles for Rs. 5.50 each, 3 articles for Rs. 3.50 each, 3 articles for Rs. 5.50 each and 5 articles for Rs. 1.50 each. The average price of one article is
a)Rs. 3
b)Rs. 3.10
c)Rs. 3.50
d)Rs. 3

3) The average of 8 men is increased by 2 yr when two of them whose ages are 21 and 23 yr are replaced by two new men. The average age of the two new men is
a)22 yr
b)24 yr
c)28 yr
d)30 yr

4) The average temperature of the first three days of the week is 40° C and that of the next three days is 42° C. If the weekly average is 40.5° C. What is the temperature on the last day of the week.
a)36° C
b)37.5° C
c)40.5° C
d)39.5° C

5) The average marks acquired by 140 students in a final examination is 36. If the average marks of failed students is 18 and the passed average students is 30. What is the number of passed students in examination?
a)205
b)210
c)200
d)None of these

6) In an examination it is required to get 34% of the aggregate marks to pass. A student gets 270 marks and he is failed by 7% marks. What are the maximum aggregate marks a student can get?
a)990
b)1100
c)900
d)1000

7) The average age of 34 students in a school is 15 years, after that when a geography teacher’s age is added to student age then the average increases by one. Find what is the teacher’s age in years?
a)45 yrs
b)49 yrs
c)50 yrs
d)55 yrs

8) The average weight of 45 students in a class was calculated as 36 kg. It was later found that the weight of two students in the class was wrongly calculated. The actual weight of one of the boys in the class was 32 kg, but it was calculated as 34 kg, and the weight of another boy in the class was 45 kg; whereas it was calculated as 40 kg. What is the actual average weight of the 45 students in the class?(Rounded off to two digits after decimal)
a)36.07 kg
b)36.16 kg
c)35.84 kg
d)None of these

9) The average age of 38 students of a class was 44 kg. After 12 new students joined the class, the average weight increased by 4.68 kg. What id the average weight of 12 new students who joined the class?(in kg)
a)61.5
b)65
c)63.5
d)65.5

10) The average weight of first 11 persons among 12 persons is 95 kg. The weight of 12th person is 33 kg more than the average weight of all the 12 persons. The weight of the 12th person is
a)128.75 kg
b)128 kg
c)131 kg
d)97.45 kg

11) The average weight of seven members of a family is 18 kg. If the head of the family is not considered, the average weight of other members becomes less by 6 kg. The weight of the head of the family is
a)42 kg
b)48 kg
c)52 kg
d)None of these

12) The average of 15 results is 75. If the average of the first 8 results is 70 and that of the last 8 results is 85 then the 8th result is
a)95
b)115
c)105
d)125

Answers:-

1)a)60
2)c)Rs. 3.50
3)d)30 yr
4)b)37.5° C
5)b)210
6)d)1000
7)c)50 yrs
8)a)36.07 kg
9)c)63.5
10)c)131 kg
11)d)None of these
12)b)115

Happy Reading!! Any doubt arises feel free to ask in the comment section.