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

Given Relation

• 20% of a equals b ⇒ b = 0.20a
• We need the value of: b% of 20

Compute b% of 20
b% of 20 = (b/100) × 20 = 20b/100 = b/5Since b = 0.20a ⇒ b/5 = (0.20a)/5 = 0.04a = a/25

Equivalent Phrasing

• a/25 is the same as 4% of a.

Final Answer
b% of 20 = a/25.