103 is 20% of what number

asked Mar 2, 2015 191k views

2 votes

by Punch

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$x \cdot 20 \% =103 \\ \\ x\cdot (20)/(100)=103 \\ \\ (1)/(5)x=103 \ \ / \cdot 5\\\\x=515 \\ \\Answer: \ number \ is \ 515$

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2 votes

Use property of proportions:

103 ---------- 20%
x ---------- 100%

x=(103*100)/(20)=(10300)/(20)=515

So, 103 is 20% of 515

Andrey Kriachko answered Mar 9, 2015

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