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 4 of 7.
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%).
Yash chavan said:
8 years ago
Suppose a=100.
then b=20%a,
b=20/100*100 (a=100),
b=20,
Means if b=20.
20% of 20=20/100*20.
= 4%.
then b=20%a,
b=20/100*100 (a=100),
b=20,
Means if b=20.
20% of 20=20/100*20.
= 4%.
Ram Mahes said:
8 years ago
Thank you so much @Kcs.
Samarth upalkar said:
8 years ago
20% of a=(a/5)=b.
b% of 20 = ((a/5)/100) * 20,
= (a/500) * 20.
= (4/100) * a,
= 4% of a.
b% of 20 = ((a/5)/100) * 20,
= (a/500) * 20.
= (4/100) * a,
= 4% of a.
Ronalo said:
8 years ago
Thanks @Arun.
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)
Hari said:
8 years ago
20% of a = b,
20/100 of a = b,
0.2 of a =b,
b% of 20.
0.2/100a * 20,
2/10 * 20a,
4%.
20/100 of a = b,
0.2 of a =b,
b% of 20.
0.2/100a * 20,
2/10 * 20a,
4%.
Raj said:
9 years ago
20% of a=b.
20 ÷ 100 of a = b.
a = 5b. b = a ÷ 5.
1 ÷ 25 of a = (1 ÷ 25) * 100 of a = 4%.
20 ÷ 100 of a = b.
a = 5b. b = a ÷ 5.
1 ÷ 25 of a = (1 ÷ 25) * 100 of a = 4%.
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)
Kowsigan said:
9 years ago
Fresh grapes contain 80% water by weight and when the grapes are died, raisins contain 25% by weight.
How many kgs of fresh grapes are needed to get 20kg of raisins?
Please someone explain to solve this.
How many kgs of fresh grapes are needed to get 20kg of raisins?
Please someone explain to solve this.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers