Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 4)
4.
Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?
Answer: Option
Explanation:
Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.
Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).
 |
 |
140 | x 5x |  |
, | |
150 | x 7x | |
and | |
175 | x 8x | |
| 100 | 100 | 100 |
| 7x, |
21x | and 14x. |
| 2 |
 The required ratio = 7x : |
21x | : 14x |
| 2 |
14x : 21x : 28x
2 : 3 : 4.
Discussion:
88 comments Page 8 of 9.
Nayana said:
2 years ago
700 : 1050 : 1400.
How its comes?
How its comes?
(6)
Sujith said:
7 years ago
Thanks for the answer @Harjinder.
Biradar said:
9 years ago
Thanks to all it helps me a lot.
Saisangeetha said:
9 years ago
@Ramesh.
Very good explanation.
Very good explanation.
Akash hotty said:
3 years ago
Can anyone explain it shortly?
(8)
Barun nag said:
1 decade ago
How 14x:21x:28x becomes 2:3:4?
Ganesh said:
1 decade ago
Hey @Barun.
14/7, 21/7, 28/7.
14/7, 21/7, 28/7.
Pankaj said:
8 years ago
Very good explanation, Thanks.
Raju said:
8 years ago
Anyone, Please explain for me.
Sandi said:
1 decade ago
Very good shortcut ramesh.
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