Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 10)
10.
If Rs. 782 be divided into three parts, proportional to 
: 
: 
, then the first part is:
: : , then the first part is:
Answer: Option
Explanation:
Given ratio = : : = 6 : 8 : 9.
 1st part = Rs. |
 |
782 x | 6 |  |
= Rs. 204 |
| 23 |
Discussion:
98 comments Page 7 of 10.
K Powar said:
1 decade ago
This is a question on equivalent fraction. Since the ratio's are not equivalent, converting into equivalent fraction as under :
1/2 = 6/12
2/3 = 8/12
3/4 = 9/12
Hence, the ratio's are
6:8:9
or
6/23 ; 8/23; 9/23
First part : 782 * 6/23 = 204
Second part : 782 * 8/23 = 274
Third part : 782 * 9/23 = 306
1/2 = 6/12
2/3 = 8/12
3/4 = 9/12
Hence, the ratio's are
6:8:9
or
6/23 ; 8/23; 9/23
First part : 782 * 6/23 = 204
Second part : 782 * 8/23 = 274
Third part : 782 * 9/23 = 306
Akash said:
1 decade ago
Why we need sum of all the three? how did we know this in exam?
Prapurna said:
1 decade ago
I liked Ranjani's way of solving
Kazi said:
1 decade ago
Given that 1/2:2/3:3/4 = 782.
Let 782 divided in x parts.
Than (1/2x+2/3x)+3/4x = 782.
7x/6+3x/4 = 782.
46x/24 = 782.
x = 782*24/46.
x = 408.
1/2x = 1/2*408 = 204 1st no and so on.
Let 782 divided in x parts.
Than (1/2x+2/3x)+3/4x = 782.
7x/6+3x/4 = 782.
46x/24 = 782.
x = 782*24/46.
x = 408.
1/2x = 1/2*408 = 204 1st no and so on.
Raj said:
1 decade ago
See their value is 1/2:2/3:3/4
Then take LCM 2,3,4 it's come 12
Then, (1/2:2/3:3/4)/12
Then 12/2=6 then 6*1=6
12/3=4 then 4*2=8
12/4=3 then 3*3=9
This way we find the 6:8:9.
Then take LCM 2,3,4 it's come 12
Then, (1/2:2/3:3/4)/12
Then 12/2=6 then 6*1=6
12/3=4 then 4*2=8
12/4=3 then 3*3=9
This way we find the 6:8:9.
Sanchit said:
1 decade ago
Good ranjani. Your method is good :)
Shalu said:
1 decade ago
1:2 is multiplyed by 6/6 then it will be 6/12,in second case 2:3 is multiplyed by 4/4 then 8/12, and 3:4 multyplyed by 3/3 then 9/12; it is done because of doing denominators equal,new ratio becomes 6:8:9.
Suman said:
1 decade ago
1/2:2/3:3:4 is written as 6:8:9
how can you explain? plz explain clearly.
how can you explain? plz explain clearly.
Hemant said:
1 decade ago
1/2 : 2/3 : 3/4 is written as 6:8:9 ?
plz explain
plz explain
Kannan said:
1 decade ago
Taking lcm for 2, 3, 4 and we got 12. Then the numerators 6, 8, 9 were used.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers