Find the average of all prime numbers between 30 and 50?
A.
39
B.
39.8
C.
40.8
D.
37.8
2.
The average of first five multiples of 3 is?
A.
6
B.
9
C.
15
D.
3
3.
The average weight of a class of 30 students is 40 kgs if the
teacher weight is included then average increases by 2 kgs then
find the weight of the teacher?
A.
96
B.
100
C.
102
D.
106
4.
The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3
years older. If the ages of these two are excluded, the average age of the remaining players
is one year less than the average age of the whole team. What is the average age of the
team?
A.
23
B.
25
C.
27
D.
22
5.
Find the average of first 40 natural numbers?
A.
20
B.
21
C.
19
D.
20.5
6.
Find the average of first 20 multiples of 7?
A.
72
B.
72.5
C.
70
D.
73.5
7.
A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15,
13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be the
number in the place of x ?
A.
5
B.
7
C.
17
D.
9
8.
The average age of Mr and Mrs Sharma 4 years ago is 28 years .
If the present average age of Mr and Mrs Sharma and their son
is 22 years. What is the age of their son?
A.
1yr
B.
2yr
C.
3yr
D.
4yr
9.
The average age of husband, wife and their child 3 years ago was 27 years and that of wife
and the child 5 years ago was 20 years. The present age of the husband is?
A.
35
B.
40
C.
45
D.
50
10.
The average of four consecutive even numbers is 27. find the largest of these
numbers?
Quantitative Aptitude Quiz: IBPS RRB Group-A Officers!
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What will come in place of question mark (?) in the following question?
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Sample Question
The age of a man is three times the sum of the ages of his two sons. Five years hence, his age will be double of the sum of the ages of his sons. The father's present age is?