Four fifth of a number is 20 less than original number. Find the number
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0
Answer:
4n = 5n - 100
100 = n
and...
80 = 100-20
Answered by
0
Answer:
original number = 100
explanation
let the original number be x
so, 4/5 of original number = 4x/5
according to question
4x/5 = x - 20
20 = x - 4x/5
20 = (5x - 4x) / 5
100 = x
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