QUANTITATIVE APTITUDE ANSWERS - 2

1. (e)

Required ratio = (4*180) : (8 * 120) : (3 * 160)

= 3 : 4 : 2

2. (b)

Let the total distance be 2D. Now,

D/75+D/45=24

D = 675

Total distance = 2 * 675 = 1350

 3. (a)

3A = 4B = 7C

A : B : C = 1/3:1/4:1/7=28:21:12

C’s share = 12/(28+21+12)*2135=420

 4. (d)

Let CP of 200 mangoes = 200

SP of 16 mangoes = 200

CP of 16 mangoes = 160

Profit% = (200-160)/160*100=25% 

5. (a)

Number of ways to arrange vowels = 2!

Number of ways to arrange consonants = 4!

Total number of arrangements = 2! * 4! = 48

6. (a)

Let the numerator and denominator be 3x and 5x respectively. Now,

(3x+1)/(5x-1)=2/3

x = 5

Required sum = 3x+5x = 8x = 40

7. (a)

Required profit% = 

(1200-900)/900*100=33.33%

8. (d)

Required number of hours = (72*12)/60=14.4

9. (a)

Third Number = 64 + (64 – 59)*2 + (64 - 63)*2 = 76

10. (c)

Let the incomes of A and B be 5x and 4x respectively.

Now,

(5x-1200)/(4x-1200)=3/2

x = 600

Income of A = 5x = 3000