Discuss Forum
1. If 20% of a=b then b% of 20 is the same as
- A. 4% of a
- B. 4% of a
- C. 4% of a
- D. 4% of a
Answer: Option A
Explanation:
20 % of a = b
বা, a × (20/100) = b
বা, a × (1/5) = b
বা, a : b = 5 : 1
Let a = 5 and b = 1
Let b% of 20 is the same as x% of a, then
b% of 20 = x% of a
বা, 20 × (1/100) = 5 × (x/100)
বা, x = 20/5
∴ x = 4%
The correct option is 4% of a.
Post your comments here: