Question

If mean of two numbers is 20 and their difference is zero then the numbers are.

Answer 1

Answer:

0 value is jero

and you any aad ya another

but answer us 0

Answer 2

Let the numbers be = x and y

mean = 20

x - y = 0 ---- (1)

mean = sum of the numbers

total numbers

20 = x + y

2

x + y = 20 × 2

x + y = 40 ------- (2)

Adding (1) and (2)

2x = 40

x = 40/2

x = 20

substitute value of x in (1)

x - y = 0

20 - y = 0

- y = - 20

y = 20

The numbers are 20 and 20