12.5% of what number is 20
12.5 / 100 = 20 / X
multiply 100 x 10 to get 2000
multiply 12.5 x X to get 12.5X
divide both 2000 and 12.5X by 12.5 to get 2000 / 12.5 = X
2000 / 12.5 = 160 therefore X = 160
check your answer by multiplying 0.125 by 160 to get 20
Answer:
160
Step-by-step explanation:
Let x be the unknown number,
∵ 12.5% of x = \(\frac{12.5x}{100}\)
According to the question,
\(\frac{12.5x}{100}=20\)
\(12.5x = 2000\) ( By cross multiplication )
\(x=\frac{2000}{12.5}\)
\(\implies x = 160\)
Therefore, 12.5% of 160 is 20.