- Aptitude - Home
- Aptitude - Overview
- Quantitative Aptitude
Aptitude - Ratios Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Ratios. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - In a mixture of 60 litres, the ratio of milk and water is 5:1. How much water must be added to this mixture so that the ratio of milk and water becomes 2:3?
Answer : C
Explanation
Let water is x 5x:x = milk:water 50 :10 = 5x:x (since 60litres ) Now 50/(10+x)=2/3 => x=65 litres
Q 2 - Two numbers are respectively 80% and 60% more than a third number. What is the ratio between two numbers?
Answer : C
Explanation
Let the third number be x => The first and second number becomes 1.8x and 1.6x Their ratio will be 1.8x/1.6x=1.8/1.6=9/8 = 9:8
Answer : A
Explanation
A/C = (a/b *b/c) = (2/3*4/5 ) = 8/15 C/A =15/8 , so C:A = 15:8
Answer : B
Explanation
2A =3B thus A/B=3/2 and 4B=5C thus B/C = 5/4 ∴ A/C=(A/B*B/C) = (3/2*5/4) = 15/8 A:C =15:8.
Q 5 - In a school, the proportion of young men and young ladies is 4:5 . at the point when 100 young lady leaves the school , the proportion gets to be 6:7 . What are number of young men are there in the school?
Answer : B
Explanation
Let the number of boys and girls be 4x and 5x respectively.
Then,4x/5x-100=6/7?28x=30x-600 =>2x=600 => x=300.
Number of boys=(4*300)=1200.
Q 6 - The no's proportion of understudy concentrating on in school A,B and C is 5:6:8 . In the event that the no. of understudy in each of the schools is expanded by 30%, 25% and 25% individually, what will be the new proportion of the understudy in the school A, B and C?
Answer : B
Explanation
New strength = (130% of 5x), (125% of 6x) and (125% of 8x) = (130/100*5x), (125/100*6x),(125/100*8x) New ratio=650x/100:750x/100:1000x/100=65:75:100=13:15:20.
Q 7 - At the point when 20% of a no. is added to another no., the no. increment by half. What is the proportion between the first and the second no?
Answer : C
Explanation
Let the numbers be x and y. Then,
Y+ 20x/100 = (150/100)y
=> x/5 ={ (3/2)y-y}= y/2
=> 2x-5y
=> x/y=5/2
=> x:y =5:2
Q 8 - The proportion of first and worthless train passages between two stations is 3:1 and that of the no. of traveler going between two these by first and inferior 1:50 . in the event that on a specific day rs.1325 be gathered from the travelers going between these stations, then the sum gathered from useless travelers is:
Answer : A
Explanation
Ratio of the amounts collected form 1stand 2nd class fares
=(3*1:1*50)=3:50.
Amount collected from 2nd class passengers=Rs (1325*50/53) = Rs 1250.
Q 9 - An entirety of cash is isolated among A, B and C in a manner that to every rs. A gets 100, B gets 65 paisa and C gets 35 paisa. If C offer is 28, the total is:
Answer : C
Explanation
A:B:C=100:65:35 = 20:13:7 If C share is 7, sum is (20+13+7). If C share is 28, sum is (40/7*28)= 160
Q 10 - Two vessels A and B contain drain and water blended in the proportion 5:3 and 2:3. At the point when these blends are blended to frame another blend containing half drain and half water, they must be taken in the proportion
Answer : C
Explanation
Let the required ratio be x:1, Milk in x liters of A=(x*5/8) liters=5x/8 liters,Water=3x/8 liters. Milk in 1 litre of B=(1*2/5) litre=2/5 litre, Water =3/5 liters. ∴ (5x/8+2/5) / (3x/8+3/5) = 1/1 =>(5x/8+2/5)=(3x/8+3/5) => 2x/8=1/5 =>x=4/5. Required ratio= 4/5:1=4:5.