Four -fifth of a number is 20 less than the original number. Find the number
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The number is 100.
Explanation-
Let the number be x
(5x/5)-(4x/5)=20
x/5=20
x=20*5=100
Explanation-
Let the number be x
(5x/5)-(4x/5)=20
x/5=20
x=20*5=100
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