Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 9)
9.
The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:
Answer: Option
Explanation:
Let the three parts be A, B, C. Then,
| A : B = 2 : 3 and B : C = 5 : 8 = |  |
5 x | 3 |  |
: | |
8 x | 3 | |
= 3 : | 24 |
| 5 | 5 | 5 |
 A : B : C = 2 : 3 : |
24 | = 10 : 15 : 24 |
| 5 |
| B = |
|
98 x | 15 | |
= 30. |
| 49 |
Discussion:
122 comments Page 7 of 13.
Boomersimhan said:
1 year ago
x+y+z = 98;
x/y = 2/3;
y/z = 5/8;
2y/3 + y/1 + 8y/5 = 98;
By Solving these;
49y/15 = 98,
y = 15*2,
y = 30.
x/y = 2/3;
y/z = 5/8;
2y/3 + y/1 + 8y/5 = 98;
By Solving these;
49y/15 = 98,
y = 15*2,
y = 30.
(34)
Vaibhav said:
7 years ago
x + y + z = 98,
2y/3 + y + 8y/5 = 98,
5y/3 + 8y/5 = 98,
25y/15 + 24y/15 = 98,
49y/15 = 98,
y = 98 * 15/49,
y = 30.
2y/3 + y + 8y/5 = 98,
5y/3 + 8y/5 = 98,
25y/15 + 24y/15 = 98,
49y/15 = 98,
y = 98 * 15/49,
y = 30.
AMARANATHAREDDY said:
8 years ago
a : b : c = 98.
a:b = 2:3.
b:c = 5:8.
a = 2/3b.
c = 8/5b.
a:b:c = 98,
2/3:b:8/5 = 98,
10b:15b:24b = 98,
b = 30.
a:b = 2:3.
b:c = 5:8.
a = 2/3b.
c = 8/5b.
a:b:c = 98,
2/3:b:8/5 = 98,
10b:15b:24b = 98,
b = 30.
Avinash dhanvijay said:
6 years ago
2 3:5 8
10 15 24.
Therefore 10+15+24 = 49 then 98/49,
X = 2.
Now 2nd no = 15 * 2 = 30 ans.
10 15 24.
Therefore 10+15+24 = 49 then 98/49,
X = 2.
Now 2nd no = 15 * 2 = 30 ans.
Rahul kumar said:
6 years ago
x:y:z
2:3:3 ~1
5:5:8 ~2
Then multiply 1 and 2 we get 10:15:24.
10+15+24 = 98.
49 = 98.
1 = 2.
15x2 = 30.
2:3:3 ~1
5:5:8 ~2
Then multiply 1 and 2 we get 10:15:24.
10+15+24 = 98.
49 = 98.
1 = 2.
15x2 = 30.
Dennis said:
9 years ago
@Ankur Saxena,
Good job your method has a different approach to the question. Thanks for explaining it.
Good job your method has a different approach to the question. Thanks for explaining it.
Nena said:
1 decade ago
I have a question please solve it. If A:B=2:3, B:C=4:5, and C:D= 6:7 then find the value of A:B:C:D.
Ravi said:
8 years ago
If a - b : b - c : c - d = 1 : 2 : 3, then what is the value of (a + d) : c? Can anyone solve this?
Murali said:
1 decade ago
If a:b:c=2:3:5 then the ratio of (b+c)/4:(c+a)/4:(a+b)/4 is?
Can any one give answer for this....
Can any one give answer for this....
Dhanakar said:
5 years ago
2:3
--5:8
_______
10:15:24
________
Now total sum is 98.
Then 10+15+24=49.
(98*15/49)=(2*15)=30.
--5:8
_______
10:15:24
________
Now total sum is 98.
Then 10+15+24=49.
(98*15/49)=(2*15)=30.
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