Question

0.001 bar in the form of p/q , where p and q are integers and q is not = 0

Answer 1

x=0.001 bar-------------1equation
1000x=1.001 bar------2equation
1000x-x=2equtaion-1equation
999x=1.001-0.001
999x=1
x=1upon999

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Answer 2

hey mate!
let x = 0.001 bar
then, 1000x = 1. 001
1000x-x= 1.001- 0.001
999x= 1
x. = 1/999
so, 0.001 in p/q form is 1/999
hope it was helpful!