Ratio and Proportion Quiz Set 015

Your Score
Correct Answers:
Wrong Answers:
Unattempted:

Question 1

The sides of a triangle are in the ratio 3 : 11 : 10, which is the longest side, if the perimeter is 480?

 A

220.

 B

222.

 C

218.

 D

224.

Soln.
Ans: a

Let the sides be 3x, 11x and 10x. We have 3x + 11x + 10x = 480, or 24x = 480, which gives x = 20, so the longest side is 11 × x = 11 × 20 = 220.

Solution | Discuss! | Chapters»

Question 2

If a : b is 11 : 2, then what is (23a - 5b) : (6a - 4b)?

 A

$4{11/58}$.

 B

$5{16/57}$.

 C

$3{1/12}$.

 D

$6{19/20}$.

Soln.
Ans: a

Simply substitute the values to get (23a - 5b) : (6a - 4b) as (23 × 11 - 5 × 2) : (6 × 11 - 4 × 2) = $243/58$ = ${243/58}$, which is same as: $4{11/58}$.

Solution | Discuss! | Chapters»

Question 3

Two numbers are in the ratio 2 : 15. If both are increased by 4, the new ratio becomes 34 : 229. What is the first number?

 A

30.

 B

34.

 C

26.

 D

38.

Soln.
Ans: a

Let the numbers be 2x and 15x. We are given ${2x + 4}/{15x + 4} = 34/229$. Solving, we get x = 15, so first number is 15 × 2 = 30.

Solution | Discuss! | Chapters»

Question 4

If 9, x, x and 4 are in proportion, then what is x?

 A

6.

 B

10.

 C

18.

 D

14.

Soln.
Ans: a

We have 9 : x :: x : 4, so 9 × 4 = x × x, which gives x = 3 × 2 = 6.

Solution | Discuss! | Chapters»

Question 5

The sides of a triangle are in the ratio 5 : 12 : 9, which is the longest side, if the perimeter is 520?

 A

240.

 B

242.

 C

238.

 D

244.

Soln.
Ans: a

Let the sides be 5x, 12x and 9x. We have 5x + 12x + 9x = 520, or 26x = 520, which gives x = 20, so the longest side is 12 × x = 12 × 20 = 240.

Solution | Discuss! | Chapters»
buy aptitude video tutorials

Creative Commons License
This Blog Post/Article "Ratio and Proportion Quiz Set 015" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2020-02-07. Published on: 2016-05-12

Posted by Parveen(Hoven),
Aptitude Trainer

Comments and Discussion