If 20% of $a$ equals $b$, then $b\%$ of 20 is the same as

Question

A bought a phone from a store and paid $\frac{1}{6}$ of the price using UPI, $\frac{1}{3}$ of the price in cash, and the remaining balance a year later. He also paid 10% interest on the remaining balance after one year. What was the original price of the phone?

Answer 1

Step 1: Plug a number.
Let $a=100$, then $b=20$.
Step 2: Evaluate.
$b\%$ of $20=20\%$ of $20=4$, and $4$ is $4\%$ of $100=a$.
\[\boxed{4\%\ \textrm{of }a}\]

If 20% of \(a\) equals \(b\), then \(b\%\) of 20 is the same as

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The Correct Option is A

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