If 20% of a = b, then b% of 20 is the same as: Options: A . &nbsp4% of a B . &nbsp5% of a C . &nbsp20% of a D . &nbspNone of these

If 20% of a = b, then b% of 20 is the same as:

Question

If 20% of a = b, then b% of 20 is the same as:

Options:

A . 4% of a

B . 5% of a

C . 20% of a

D . None of these

Answer: Option A

20% of a = b \(\Rightarrow\frac{20}{100}a = b\)

So, b% of 20 = \(\left(\frac{b}{100}\times 20\right) = \left(\frac{20}{100}a\times\frac{1}{100}\times20\right)\) = 4% of a.

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