Aptitude - Percentage - Discussion
Discussion Forum : Percentage - General Questions (Q.No. 2)
2.
Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are:
Answer: Option
Explanation:
Let their marks be (x + 9) and x.
| Then, x + 9 = | 56 | (x + 9 + x) |
| 100 |
25(x + 9) = 14(2x + 9)
3x = 99
x = 33
So, their marks are 42 and 33.
Discussion:
170 comments Page 11 of 17.
Arjun said:
3 years ago
Why we Equalize 56/100 (2x+9) into x+9? can anyone please explain this?
(16)
SandipWaghmare said:
10 years ago
@Sawant.
= 30/100*x = 180*100/30.
x = (180*100/30)100/30.
x = 270.
= 30/100*x = 180*100/30.
x = (180*100/30)100/30.
x = 270.
Santhiya said:
2 years ago
Total = 100.
F = 56%,
Therefore;
X = 100 - 56 = 44.
44 - 9 = X = 33.
F = 56%,
Therefore;
X = 100 - 56 = 44.
44 - 9 = X = 33.
(91)
Geetha said:
5 years ago
Where does this 25 and 14 in equation come? Please explain about it.
Harsha said:
5 years ago
Why we make x+x+9 their? I am not getting that, Anyone explain me.
(1)
Anu said:
1 decade ago
=> 25(x + 9) = 14(2x + 9).
=> 3x = 99.
How it became this?
=> 3x = 99.
How it became this?
Ravi said:
10 years ago
Option method is too easy and fastest way to solve this question.
Archana Gaikwad said:
9 years ago
56% - 44 = 9.
But please explain 100% = 75.
& How 25 come?
But please explain 100% = 75.
& How 25 come?
Moli said:
2 years ago
Total =100
F= 56%
S = ?.
So,
X = 100 - 56 = 44.
44 - 9 = 33.
F= 56%
S = ?.
So,
X = 100 - 56 = 44.
44 - 9 = 33.
(97)
Ritesh Rawal said:
3 years ago
Your explanation is simple & clear. Thank you very much @Neelu.
(20)
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