Question

Q3. Find Two rational numbers between −1 by 5 and 0 by using Average method.

Answer 1

Answer:

-1 / 10 and - 3 / 20

Step-by-step explanation:

first we have to find 1 rational number between - 1 / 5 and 0 by calculating mean ( average ) of -1 / 5 and 0

( - 1 / 5 + 0 ) / 2 = - 1/5 / 2 = - 1/ 10

so - 1 / 10 is a rational number between - 1 / 5 and 0

next we have to find mean of - 1 / 10 and - 1 / 5 to find the 2nd rational number between -1 / 5 and 0

( -1 / 10 + [- 1 / 5] ) / 2 =

( - 1 / 10 + [ -2 / 10 ] )  / 2 =

( -3 / 10 ) / 2 =

-3 / 20

therefore 2 rational numbers between -1/5 and 0 are -1 / 10 and - 3 / 20