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:
97 comments Page 8 of 10.
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.
Sanesh said:
1 decade ago
I can't understand the 6/23 so please explain?
Rupam said:
1 decade ago
Given Ratio = 1/2 : 2/3 : 3/4.
= 1/2*12 : 2/3*12 : 3/4*12.
= 6 : 8 : 9.
So 1st part is = Rs. (782 * 6/23) = Rs. 204.
[ to get 12.. do LCM of 2, 3 and 4 ].
= 1/2*12 : 2/3*12 : 3/4*12.
= 6 : 8 : 9.
So 1st part is = Rs. (782 * 6/23) = Rs. 204.
[ to get 12.. do LCM of 2, 3 and 4 ].
Kamal bansal said:
1 decade ago
Why we need sum of all the three? how did we know this in exam?
Deepa said:
1 decade ago
Hi,
The given ratios are in fraction form that's why we have to convert the fraction form to whole number form with out changing the values of the ratios (only the form is changed and not the values) _. Then only the sum will b easy. And continue the sum as @K.POWAR said. I hope you can understand.
The given ratios are in fraction form that's why we have to convert the fraction form to whole number form with out changing the values of the ratios (only the form is changed and not the values) _. Then only the sum will b easy. And continue the sum as @K.POWAR said. I hope you can understand.
Chintamani said:
1 decade ago
Why take LCM when we can directly simplify 1/2:2/3:3/4 by cancelling the common factor?
T.SATHISH KUMAR said:
1 decade ago
Easy method take 2, 3, 4 first divide by 2 then it becomes 1, 3, 2 then divide 2 then it becomes 1, 3, 1 then divide 3 it becomes 1, 1, 1 then take divided number 2*2*3=12 do like this my friend.
Sravani said:
1 decade ago
I liked Rajani's way of solving
AJAY said:
9 years ago
TAKE LCM(2,3,4) = 12;
THEN (6:8:9).
THEN (6:8:9).
Prashant said:
8 years ago
1st take the LCM of all denominators i.e 2,3,4 is 24 then multiply each ratio by 24. 1/2*24=12 , 2/3*24=16, 3/4*24=18.
Therefore ans is 12:16:18.
i.e 6:8:9. That's over
Therefore ans is 12:16:18.
i.e 6:8:9. That's over
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