four-fifths of a number is 20less than the original number. find the number
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let the number be x
4/5×x = x-20
4x/5=x-20
5(x-20)=4x (cross multiplication )
5x-100=4x
5x-4x= 100
x=100
I hope it will help u
4/5×x = x-20
4x/5=x-20
5(x-20)=4x (cross multiplication )
5x-100=4x
5x-4x= 100
x=100
I hope it will help u
dharmlodhi:
thanku
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