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:
68 comments Page 3 of 7.
SABARI said:
6 years ago
20% a = b
when b is 20.
a = (20/100)*20,
a = 4.
when b is 20.
a = (20/100)*20,
a = 4.
(1)
Pavan said:
6 years ago
Anyone explain this.
(1)
Prajwal said:
6 years ago
(20/100)a=b ----> (1)
(b/100)*20=? --------> (2)
So substitute (1) in (2).
So we get [(20/100)/100]*20 ==>(4/100) ==>4% [because b=(20/100)a].
(b/100)*20=? --------> (2)
So substitute (1) in (2).
So we get [(20/100)/100]*20 ==>(4/100) ==>4% [because b=(20/100)a].
(1)
Sakshi said:
7 years ago
20*20/100 = 400/ 100.
= 4% is the answer.
= 4% is the answer.
(1)
Sudarshan prasad said:
8 years ago
Putting the value of b in b of 20% = 20% of a of 20% = 4/100 x a= 4% of a.
(1)
Murugesh said:
8 years ago
Simple.
a=b = 20%
What is b% of 20,
20/100*20 = 4%.
a=b = 20%
What is b% of 20,
20/100*20 = 4%.
(1)
Kiran mali said:
9 years ago
20% of a = b.
Means,
20/100 * a = b.
0.2a = b.
Means b = 0.2a,
Now b % of 20 = suppose x,
Means b/100*20 = x,
But b = 0.2a,
Meas 0.2a/100 * 20 = x
4a/100 = x.
Means we get that's value x = 4% of a.
Means,
20/100 * a = b.
0.2a = b.
Means b = 0.2a,
Now b % of 20 = suppose x,
Means b/100*20 = x,
But b = 0.2a,
Meas 0.2a/100 * 20 = x
4a/100 = x.
Means we get that's value x = 4% of a.
(1)
Manish said:
1 decade ago
20/100*a = b.
=> a/5 = b.
i.e. b = a/5.
No b% of 20 is b/100 *20.
= b/5.
Replacing b with a/5.
= a/25.
= 0.04 a.
= 4% of a.
=> a/5 = b.
i.e. b = a/5.
No b% of 20 is b/100 *20.
= b/5.
Replacing b with a/5.
= a/25.
= 0.04 a.
= 4% of a.
(1)
Swaminathan Vembu said:
1 decade ago
The Question -> f 20% of a = b, then b% of 20 is the same as ?
Now since 20/100 * a = b,
b = 1/5*a = 0.2a.
b% of 20 implies 0.2a / 100 * 20 = 0.04a = 4% of a [4/100 * a].
Now since 20/100 * a = b,
b = 1/5*a = 0.2a.
b% of 20 implies 0.2a / 100 * 20 = 0.04a = 4% of a [4/100 * a].
Sanjit said:
9 years ago
What number is 60% less than 80? Please find and explain it.
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