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:
70 comments Page 7 of 7.
Sanjit said:
10 years ago
What number is 60% less than 80? Please find and explain it.
Swapnil said:
8 years ago
(20% of a)/100 = (20% of a) * (1/100).
Halvaraj said:
8 years ago
(20% of a)/100 = (20% of a) * (1/100).
Aditya said:
9 years ago
Let a =100 Now 20% of a i.e. 100 * 20/100 = 20 Rs.
Means 100 Rs of a = 20 Rs of b.
It means 1 Rs of a = 20/100 of b i.e 1/5 Rs.
Now, 20% of 1/5 = 20 * 1/5 = 4 Rs.
Means 100 Rs of a = 20 Rs of b.
It means 1 Rs of a = 20/100 of b i.e 1/5 Rs.
Now, 20% of 1/5 = 20 * 1/5 = 4 Rs.
Narmadha said:
7 years ago
If you consider a=50, then the answer will not be 4%, there is no clue in the question that one should take a=100. When I assigned a=100 I got the answer as 4%, then when I assigned different value for a, the % varies.
Ubaid goje said:
7 years ago
Thanks @Swaminathan Vembu.
Sagar said:
7 years ago
Hi, I am not understanding this. Anyone explain me to get the answer.
Qadir said:
7 years ago
20% of a = b --> Assume a as 100.
So, 20% of 100 = 20 By this we can say b=20.
Now, b% of 20 b=20% of 20=4 which is the answer.
So, 20% of 100 = 20 By this we can say b=20.
Now, b% of 20 b=20% of 20=4 which is the answer.
Chakresh patel said:
9 years ago
Nice @Arun, really it's very good explanation.
Rahulj said:
9 years ago
Nice explanation @Arun.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers