find a number which when multiplied by 5 is increased by 80
ankit550:
anybody help me
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n*5 = n+80
n*5-n = 80
n (5-1) = 80
n = 80/4
n= 20
n*5-n = 80
n (5-1) = 80
n = 80/4
n= 20
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