Quants Questions : Averages Set 3

August 17, 2015

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Hello Aspirants. Welcome to Online Quantitative Aptitude Section with explanation in AffairsCloud.com. Here we are creating question sample in Averages, which is common for all the IBPS,SBI exam and other competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

The average of four consecutive ODD number is 28.Find the largest number.
A)25
B)31
C)13
D)27
Answer – B) 31
Explanation :
Find the average of first 60 natural numbers
A)30.5
B)31
C)31.5
D)32
Answer -A) 30.5
Explanation :
Find the average of 13+26+39+……..+260
A)136.5
B)136
C)137
D)135
Answer – A)136.5
Explanation :
The average of five number is 42 ,if one number is excluded the average become 35.The excluded number is
A)7
B)40
C)70
D)20
Answer – C)70
Explanation :
The average age of 30 students in a class is 20 years.The average age of 25 students is 15.What is the average age of remaining students
A)42
B)54
C)34
D)45
Answer -D)45
Explanation :
The average of nine number is x and the average of three of these is y,if the average of the remaining three is z,then
A)3x=y+z
B)2x=y+z
C)x=3y+3z
D)None of these
Answer – A)3x=y+z
Explanation :
If a,b,c,d,e,f,g are seven consecutive odd number,their average is
A)(a+6)
B)(abcdefg/7)
C)(a+b+c+d+e+f+g)/7
D)None of these
Answer – A)(a+6 )
Explanation :
The mean of 1,8,27,64,125………1728
A)650
B)560
C)600
D)605
Answer – A)650
Explanation :
4 years ago ,the average age of a family of 6member was 20 years.A baby having been born,the average age of the family is same today.The present age of the baby
A)1
B)3
C)2
D)4
Answer -D)4
Explanation :
Average of ten positive numbers is x.If each number is increased by 12% then x is incresed by
A)5%
B)12%
C)10%
D)25%
Answer – B)12%
Explanation :