Average

Question 1

Average

Answer 1

Sum/ number

Question 2

Speed of object from a to b is X kilometre per hour
From B to a is y kilometre per hour
Average speed is

Answer 2

2xy/X + y. Kilometre per hour

Question 3

Average of n1 quantities is X1
Average of n2quantities is X2
Average of total quantities

Answer 3

N1x1+n2x2/N1+n2

Question 4

Average of some consideration of even number

Answer 4

X-4,x-2,x,x+2,x+4

Question 5

Average of some of consideration of odd number

Answer 5

X,x-1,x-2,x+1

Question 6

Old average of class A
Number of students n
Difference D
Student excluded

Answer 6

A+(n-1)d

Question 7

Number of students in class is n
Increase by d
One of them was X kg replaced by new one
Weight of new one is

Answer 7

Weight of replaced one + number of people

Question 8

Finding the greatest number

Average of n natural number is y
Find the greatest number

Answer 8

Y+(n-1)/2

Question 9

Finding the least number

Average of n natural number is y
Find the least number

Answer 9

Y-(n-1)/2

Question 10

Runs scored by cricketer is X in y innings
Average is increased by z
Find the present average

Answer 10

x-(yz)+z

Question 11

Average of first multiple of n

Answer 11

A(n+1)/2

A is number
N multiple

Question 12

average run of 10 innings of batsman was a how many runs would be made in the next innings so that average is increased by z

Answer 12

Score =

Average + total innings X increased runs

Question 13

Average monthly salary of 20 employees in an organisation is rupees 1500 if the manager salary is added then the average salary increased by rupees hundred what is the managers monthly salary

Answer 13

1500 + 21 X 100

Question 14

Ranking

Front rank + last rank =

Answer 14

total -1

Question 15

Ranking

Position =

Answer 15

Total - Frank + one