Question

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

Options

• 4% of a

• 5% of a

• 20% of a

• None of these

Answer 1

4% of a
Explanation : 
20% of a = b

⇒ `20/100a = b`

∴ `b% of 20 = 20/100axx1/100xx20`

        `4/100a=4%` of a