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 9 of 9.
Gnaneswar said:
1 decade ago
Singh concept is correct.
Bala said:
1 decade ago
Why we should add 100+x?
Ahmad said:
8 years ago
Awesome, thanks @Ramesh.
(2)
Praveen said:
1 decade ago
Any shortcut for this ?
M Zubair said:
5 years ago
Excellent. Thanks all.
(3)
Hari said:
1 decade ago
Good shortcut ramesh.
Kushi said:
1 decade ago
Thanks harjinder.
Shikha said:
9 years ago
Thanks @Ramesh.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers