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Quantitative Aptitude DI - Nov 25 2020

Here we are providing new series of Quantitative Aptitude Questions for upcoming exams, so the aspirants can practice it on a daily basis.

Study the following information carefully and answer the given questions:

The following table shows the total number of students enrolled in different music schools and the percentage of enrolled students who are learning karnatic music and the ratio of male and female learning karnatic music.

1) Find the ratio between the total number of students learning Karnatic music from music school P to that of S?

A) 288: 455

B) 11: 23

C) 312: 157

D) 35: 43

E) None of these

2) Find the total number of male students learning Karnatic music from Music school Q, R and T together?

A) 338

B) 412

C) 436

D) 474

E) None of these

3) Find the difference between the total students learning other than Karnatic music from music school Q to that of T?

A) 44

B) 22

C) 38

D) 13

E) None of these

4) The total students enrolled for music from School R is approximately what percentage of total students enrolled for music from School S?

A) 51 %

B) 38 %

C) 62 %

D) 73 %

E) 84 %

5) The total number of male students enrolled for Karnatic music from School P is approximately what percentage more/less than the total number of female students enrolled for Karnatic music from School T?

A) 45 %

B) 38 %

C) 57 %

D) 22 %

E) 66 %

Directions (1-5) :

1) Answer: A

The total number of students learning Karnatic music from music school P

= > 640*(45/100) = 288

The total number of students learning Karnatic music from music school S

= > 700*(65/100) = 455

Required ratio = 288: 455

2) Answer: A

The total number of male students learning Karnatic music from Music school Q, R and T together

= > 520*(40/100)*(3/4) + 360*(55/100)*(1/3) + 580*(50/100)*(2/5)

= > 156 + 66 + 116 = 338

3) Answer: B

The total students learning other than Karnatic music from music school Q

= > 520*(60/100) = 312

The total students learning other than Karnatic music from music school T

= > 580*(50/100) = 290

Required difference = 312 – 290 = 22

4) Answer: A

The total students enrolled for music from School R = 360

The total students enrolled for music from School S = 700

Required % = (360/700)*100 = 51 %

5) Answer: B

The total number of male students enrolled for Karnatic music from School P

= > 640*(45/100)*(3/8) = 108

The total number of female students enrolled for Karnatic music from School T

= > 580*(50/100)*(3/5) = 174

Required % = [(174 – 108)/174]*100 = 38 %