Aptitude - Percentage - Discussion
Discussion Forum : Percentage - General Questions (Q.No. 9)
9.
| A student multiplied a number by | 3 | instead of | 5 | . |
| 5 | 3 |
What is the percentage error in the calculation?
Answer: Option
Explanation:
Let the number be x.
| Then, error = | 5 | x - | 3 | x = | 16 | x. |
| 3 | 5 | 15 |
| Error% = |  |
16x | x | 3 | x 100 |  % = 64%. |
| 15 | 5x |
Discussion:
138 comments Page 9 of 14.
S.AMIN ULLAH said:
8 years ago
How 16x/15 has been solved?
Please, Anybody can explain me this?
Please, Anybody can explain me this?
Moorthy said:
2 decades ago
Then, error = 5/3 x - 3/5 x = 16/15x.
how to came this term?
how to came this term?
(1)
Mahesha said:
8 years ago
How after 16x/15 * 3/5x * 100 it came 64%? Explain me. Please.
Chandu said:
5 years ago
5/3 - 3/5 = (5(5)-3(3))/15 = 16/15.
(16/15)/(3/5) x 100 = 64%.
(16/15)/(3/5) x 100 = 64%.
(1)
Srilekha said:
9 years ago
If we get error as a negative number them what we have to do?
Jagadeesh said:
9 years ago
@Sasi.
How can you write (3/5) (3/5) (5/3) can you explain?
How can you write (3/5) (3/5) (5/3) can you explain?
Alpesh said:
6 years ago
15 * 3/5 = 9,
5/3 * 15 = 25,
25 - 9 = 16,
16/25 * 100 = 64%.
5/3 * 15 = 25,
25 - 9 = 16,
16/25 * 100 = 64%.
Pooja said:
5 years ago
@Pradip Zala: at last, why we take 100/500. Can you explain?
M.Lokesh said:
4 years ago
Error comes from true value so;.
Error% = error/true value.
Error% = error/true value.
(18)
R.SRAVAN said:
2 decades ago
If error came a negative value then what is the solution?
(1)
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