Aptitude - Ratios Online Quiz

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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.

Questions and Answers

Q 1 - The ratio of money with Raju and Babu is 9:19 and that with Babu and Shyam is 9:19.if Raju has Rs.567,Babu has

A - 2527

B - 2525

C - 2523

D - 2521

Answer : A

Explanation

Raju:Babu = 9:19 = 81:171
Babu:Shyam = 9:19 = 171:361
=> Raju:Shaym = 81:361
=> 81:361 = 567:x
=>x = 2527

Q 2 - Two numbers are respectively 80% and 60% more than a third number. What is the ratio between two numbers?

A - 7:8

B - 8:9

C - 9:8

D - 4:3

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

Q 3 - If A:B =5:7 and B:C = 6:11, then A:B:C =?

A - 55:77:66

B - 30:42:77

C - 35:49:42

D - None of the above.

Answer : B

Explanation

A:B = 5:7 = 30:42
B:C = 6:11 = 42:77
Thus A: B: C = 30:42:77

Q 4 - if 0.4 :1.4 ::1.4:x , then x= ?

A - 49

B - 4.9

C - 0.49

D - 0.4

Answer : B

Explanation

0.4*X =1.4 *1.4
=> X=1.4*1.4/0.4 
=14*14/10*4 
=49/10= 4.9

Q 5 - On separating a total of rs. 832 in the middle of An and B in the proportion 1/3 :1/5 , there offer are :

A - 520 , 312

B - 500, 332

C - 530 ,302

D - 490 , 342

Answer : A

Explanation

Given ratio =1/3: 1/5 = 5:3
Ist part=Rs(832*5/8)=Rs 520; 
2nd part = Rs(832*3/8)=Rs 312.

Q 6 - If 32 understudies In a class are females and the proportion of females to guys understudy is 16:9 , then what % of the class is females ?

A - 32%

B - 36%

C - 56.25%

D - 64%

Answer : D

Explanation

Let the females be16x and males 9x .
Then, 16 x = 32  
=> x=2
 So, there are 32 females and 18 males in the class. 
 Percentage of females = {32/50*100)% = 64 %

Q 7 - What ought to be added to each of the four numbers 6, 14, 18, 38 to make them corresponding?

A - 1

B - 2

C - 3

D - 4

Answer : B

Explanation

Let the number to be added be x. Then,
6+X/14+x=  18+x/38+x
=>  (6+x) (38+x)= (14+ x) (18 +x)
=>  228 +44x+x<sup>2</sup> = 252+32x+x<sup>2</sup>
= 12x=24 
=>  x=2 .
∴ the required number is 2.

Q 8 - Three no. are in the proportion 3:4:5. The total of the biggest and the littlest measures up to the third's entirety and 52. The littlest no. is?

A - 20

B - 27

C - 39

D - 52

Answer : C

Explanation

Let the numbers be 3x, 4x and 5x.
(5x+3x) = 4x+52  
=>  4x =52 
=>  x=13
  Smallest no. = (3*13) = 39

Q 9 - Rs. 5625 are separated among A, B and C so that A receives 1/2 as much as B and C together gets and B gets 1/4 of what An and C together gets. The offer of A is more than B by:

A - 750

B - 775

C - 1500

D - 1600

Answer : A

Explanation

A= 1/2(B+C) 
=> B+C= 2A 
=> A+B+C= 3A
∴ 3A = 5625 
=> A= 1875.
B= 1/4 (A+C) 
=> A+C =4B 
=> A+B+C = 5B
∴ 5B = 5625 
=> B =1125
Hence, (A-B) = (1875-1125) =750

Q 10 - Three equivalent glasses are loaded with blend of soul and water. The proportion of sprit and water is given underneath:- first glass = 3:4 , second glass =4:5 ,third glass =5:6 The substance of three glasses are purged into a solitary vessel. What is the proportion of spirit to water in the blend now?

A - 820:1149

B - 920:1159

C - 1010 :1122

D - 1120 :1134

Answer : B

Explanation

Let 1 liter of each is taken. Then,
Spirit=(3/7+4/9+5/11)= (297+308 +315)/693=920/693.
Water =(4/7+5/9+6/11)=(396+385+378)/693=1159/693.
Required ratio =920/693:1159/693=920:1159.
aptitude_ratios.htm
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