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Ratio and Proportion Aptitude Questions and Answer

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1.) A mixture contains alcohol and water in the ratio 4:3. If 5 liters of water is added to the mixture, the ratio becomes 4:5. Find the quantity of alcohol in the given mixture.

A.)    08 Liters

B.)    10 Liters

C.)    18 Liters

D.)    22 Liters

View Answer

Answer: Option B

Explanation:

Let the quantity of alcohol and water be 4x liters and 3x liters respectively. Then,

4X/3x+5 =4/5 à 20x = 4(3x+5)

8x=20 à x=2.5

bindu Quantity of alcohol = (4 x 2.5) liters = 10 liters.


2.) If 0.75: x :: 5:8, then x is equal to:

A.)    1.12

B.)    1.16

C.)    1.20

D.)    1.30

View Answer

Answer: Option C

Explanation:

(x * 5) = (0.75 *8)

X=6/5 = 1.20


3.) If Rs. 782 be divided into three parts, proportional to 1/2:2/3:3/4, then the first part is?

A.)    Rs. 182

B.)    Rs. 190

C.)    Rs. 196

D.)    Rs. 204

 View Answer

Answer: Option D

Explanation:

Given ratio = 1/2:2/3:3/4 = 6:8:9

bindu 1st part = Rs. (782 * 6/23) = Rs. 204


4.) A sum of Money is to be distributed among A, B, C, D in the proportion of 5:2: 4:3. If C gets Rs. 1000 more than D, what is B’s share?

A.)    Rs. 500

B.)    Rs. 1500

C.)    Rs. 2000

D.)    None of these

View Answer

Answer: Option C

Explanation:

Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively.

Then, 4x – 3x = 1000 --> x = 1000.

bindu B’s share = Rs. 2x = Rs. (2 x 1000) = Rs. 2000.


5.) If 76 is divided into four parts proportional to 7, 5, 3, 4, then the smallest part is:

A.)    12

B.)    15

C.)    16

D.)    19

View Answer

Answer: Option A

Explanation:

Given ratio = 7: 5: 3: 4, Sum of ratio terms = 19.

bindu Smallest part = (76 * 3/19) = 12


 

 
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