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 6 of 7.
Narayana Rao Gartam said:
1 decade ago
Lets say A = 100, and B is 20% of A, So B = 20.
Now, what 20% of B.( we need 20% from 20) i.e 4%.
Now, what 20% of B.( we need 20% from 20) i.e 4%.
Uthaya Rani.S said:
1 decade ago
20/100*a = b.
20% of b = ?
20/100*b = 20a/100*20/100.
(Because b = 20a/100, so 20b/100 = 400/1000).
Answer = 4a/100 => 4%.
20% of b = ?
20/100*b = 20a/100*20/100.
(Because b = 20a/100, so 20b/100 = 400/1000).
Answer = 4a/100 => 4%.
Neha said:
1 decade ago
20% of a = b.
Let a = 100.
= 20/100*100 = 20.
b = 20.
= 20/100*20 = 4.
4% of a.
Let a = 100.
= 20/100*100 = 20.
b = 20.
= 20/100*20 = 4.
4% of a.
Gurkirat said:
1 decade ago
Good solutions all.
Leneri said:
8 years ago
If a=100 then 20% of a is b = 20.
20% of b =4.
( b% of 20 is the same as 20% of b).
4 out of 100 (4%).
20% of b =4.
( b% of 20 is the same as 20% of b).
4 out of 100 (4%).
Balas said:
10 years ago
Any easy method?
Naveen said:
10 years ago
20 percentage of a = b.
Then 20 percentage of b = ?
b = 20 percentage of a.
20 percentage of b = 20 percentage of 20 percentage of a.
= 20/100*20/100 of a = 4 percentage of a.
Then 20 percentage of b = ?
b = 20 percentage of a.
20 percentage of b = 20 percentage of 20 percentage of a.
= 20/100*20/100 of a = 4 percentage of a.
Sanjit said:
9 years ago
What number is 60% less than 80? Please find and explain it.
Soumya said:
9 years ago
@Sanjit.
80- 60 % (80),
= 80- 60/100 * 80,
= 80- 48,
= 32.
80- 60 % (80),
= 80- 60/100 * 80,
= 80- 48,
= 32.
Rahulj said:
9 years ago
Nice explanation @Arun.
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