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 10 of 17.
Aman Tomar said:
8 years ago
Hello Guys
Simple method.
A=x+9,
B=x,
x+9=56%(x+x+9),
x+9=56/100(2x+9),
x=33,
A=33+9=42.
B=33.
Simple method.
A=x+9,
B=x,
x+9=56%(x+x+9),
x+9=56/100(2x+9),
x=33,
A=33+9=42.
B=33.
Chahat Mishra tcet said:
6 months ago
VERY EASY:
Let total marks be = 100.
F =56%.
Therefore,
X = 100-56 = 44,
44-9 = 33,
33+9 = 42.
Let total marks be = 100.
F =56%.
Therefore,
X = 100-56 = 44,
44-9 = 33,
33+9 = 42.
(409)
Suraj said:
1 decade ago
25X+225=28X+126
28X=25X+225-126
28X=25X+99
28X-25X=99
3X=99
X=99/3
X=33
Ans:x=33; x+9=33+9=42.
28X=25X+225-126
28X=25X+99
28X-25X=99
3X=99
X=99/3
X=33
Ans:x=33; x+9=33+9=42.
Ashwin said:
5 years ago
@Sarwat
30%of number 180,
30/100*y=180.
y=600.
15%of3(number) =? .
15/100*3(600) =2700.
30%of number 180,
30/100*y=180.
y=600.
15%of3(number) =? .
15/100*3(600) =2700.
Dhiren said:
4 years ago
Simple way using ratio.
56 : 44.
i.e 14:11.
33 is divisible by 11 so the answer is C.
56 : 44.
i.e 14:11.
33 is divisible by 11 so the answer is C.
(17)
Shahid Afridi said:
2 years ago
@All
Here, some people doing the wrong calculation 44-9=35 not 33. Please correct it.
Here, some people doing the wrong calculation 44-9=35 not 33. Please correct it.
(150)
Parvathi said:
2 years ago
Let total marks be =100.
F =56%.
Therefore,
X = 100-56 = 44,
44-9 = 33,
33+9 = 42.
F =56%.
Therefore,
X = 100-56 = 44,
44-9 = 33,
33+9 = 42.
(358)
Viral said:
1 decade ago
@Radhika
How can u write this eq.
56-44/100=9
means why u put 9 to the R.H.S?
How can u write this eq.
56-44/100=9
means why u put 9 to the R.H.S?
NJK said:
1 decade ago
Suraj and Radhika's answers are super. But Suraj answer is little confusing.
BM NAIDU said:
1 decade ago
Why we equqte x+9&(56/100(x+9+x)?
Can u please explain in simple way.
Can u please explain in simple way.
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