Quant Exam  >  Quant Questions  >  Seats for Mathematics, Physics and Biology in... Start Learning for Free
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 after increased seats?
  • a)
    2 : 3 : 4
  • b)
    6 : 7 : 8
  • c)
    6 : 8 : 9
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Seats for Mathematics, Physics and Biology in a school are in the rati...
Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.
Number after increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).
⇒ (140 / 100 x 5x), (150 / 100 x 7x) and (175 / 100 x 8x)
⇒ 7x, 21x / 2 and 14x.
∴ the required ratio
= 7x : 21x / 2 : 14x
⇒ 14x : 21x : 28x
⇒ 2 : 3 : 4.
View all questions of this test
Most Upvoted Answer
Seats for Mathematics, Physics and Biology in a school are in the rati...
Ratio of seats before increase: 5 : 7 : 8

Let's increase the seats as per the given proposal:

- Mathematics seats increased by 40%: 5 + (40/100) * 5 = 7
- Physics seats increased by 50%: 7 + (50/100) * 7 = 10.5 ≈ 11
- Biology seats increased by 75%: 8 + (75/100) * 8 = 14

New ratio of seats: 7 : 11 : 14

Now, we need to simplify this ratio. We can do this by dividing all the numbers by the smallest number in the ratio, which is 7.

- 7 : 11 : 14 (divide by 7)
- 1 : 1.57 : 2 (approximate to nearest whole numbers)
- 1 : 2 : 2

Therefore, the ratio of seats after the increase is 1 : 2 : 2, which is equivalent to 2 : 3 : 4 (multiply all numbers by 2).

Hence, the correct answer is option A) 2 : 3 : 4.
Free Test
Community Answer
Seats for Mathematics, Physics and Biology in a school are in the rati...
A
Explore Courses for Quant exam

Similar Quant Doubts

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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer?
Question Description
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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer?.
Solutions for 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant. Download more important topics, notes, lectures and mock test series for Quant Exam by signing up for free.
Here you can find the meaning of 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice 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 afterincreased seats?a)2 : 3 : 4b)6 : 7 : 8c)6 : 8 : 9d)None of theseCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Quant tests.
Explore Courses for Quant exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev