Aptitude - Percentage - Discussion
Discussion Forum : Percentage - General Questions (Q.No. 6)
6.
If 20% of a = b, then b% of 20 is the same as:
Answer: Option
Explanation:
20% of a = b  |
20 | a = b. |
| 100 |
 b% of 20 = |
 |
b | x 20 |  |
= | |
20 | a x | 1 | x 20 | |
= | 4 | a = 4% of a. |
| 100 | 100 | 100 | 100 |
Discussion:
72 comments Page 8 of 8.
Shiya Chandrawanshi said:
2 months ago
It is really good. Thanks everyone for explaining it.
(1)
Subhashini R said:
1 month ago
20%of a = b
(20/100)a = b
(1/5)a = b
b = a/5.
Then b% of 20 = ?
b/100 = 20.
subs b = a/5.
(a/5)/100 = 20.
a/500 = 20.
a/25 = 0.004 x a.
It means 4% of a.
(20/100)a = b
(1/5)a = b
b = a/5.
Then b% of 20 = ?
b/100 = 20.
subs b = a/5.
(a/5)/100 = 20.
a/500 = 20.
a/25 = 0.004 x a.
It means 4% of a.
(4)
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