Question

express0.001 (bar on 001) as a rational number in the form of p/q , where p and q are integers and q#0

Answer 1

Let a = 0.001 ( bar on 001)

100a = 0.1 (bar on 1) ------(1)

1000a = 1.1 (bar on 1) -----(2)



(2) - (1), we get

990a = 1

=> a = 1 / 990

Required number = 1/990

Answer 2

divide the number by 9
if there is bar on two then divide by two 9 that is 99
if there is bar on three then divide by three 9 thatis 999