# Mixed Quantitative Aptitude Questions Set 230

1. P is 25% more efficient than Q and he completes a task in 36 days. If R alone complete the same task in 30 days, then find all three together can complete the same task in how many days ?
15 days
18 days
8 days
14 days
12 days
Option E
Ratio of efficiency of A and B = 5 : 4
total work = 36 * 5 = 180
efficiency of C = 180/30 = 6
required time = 180/5 + 4 + 6 = 12 days

2. A shopkeeper marked up an article 60% above cost price and sell it at rs.960 after allowing discount of 25%. If profit of shopkeeper is rs.160, then find the marked price of article ?
1420
1200
1140
1540
1280
Option E
Let CP of article = 100x
MP of article = 160x
CP = 960 – 160 = 800
100x = 800
x = 8
MP of article = 160 * 8 = 1280

3. Average of serious of six consecutive even numbers is 25, find the sum of second and fourth number of serious.
43
35
24
48
56
Option D
Let series be x, x + 2 , x + 4, x + 6, x + 8, x + 10
6x + 30/6 = 25
x = 20
2nd and 4th number = (20 + 2 = 22), ( 20 + 6 = 26)
sum = 48

4. Ratio of investment of A, B and C is 4 : 6 : 9 respectively. At the end of a year, ratio of profit share of A, B and C is 4 : 5 : 6 respectively. If A has invested for a year then find the sum of period of investment of B and C ?
20 months
18 months
14 months
24 months
28 months
Option B
Let investment of A, B and C = 4x, 6x and 9x respectively
period of investment of B and C = a and b months respectively.
ratio of profit share ,
A : B : C = 4x * 12 : 6x * a : 9x * b
4x * 12/6x * a = 4/5
a = 10 months
4x * 12/9x * b = 4/6
b = 8 months
required sum = 10 + 8 = 18 months

5. Ratio between income and expenditure of Sujit increased by 20% and 33.33% in two successive years and expenditure remains same, then his saving is increased by rs.18000. What is his new income ?
45000
38000
65000
32000
48000
Option E
Income and expenditure of Sujit 15x and 6x respectively.
saving = 15x – 6x = 9x
new income = 15x * 6/5 * 4/5 = 24x
24x – 6x = 9x + 18000
x = 2000
new income = 24 * 2000 = 48000

6. Directions : What will come in place of questions (?) marks in the following number series ?
36, 18, ?, 27, 54, 135
12
19
20
18
22
Option D
The series is, (* .5), (* 1), (* 1.5), (* 2), (* 2.5)

7. 26, 170, 366, 622, ? 1346
834
946
870
650
820
Option B
The series is, (+ 12)^2, (+ 14)^2, (+ 16)^2, (+ 18)^2, (+ 20)^2

8. 10, 11, 15, 24, ? 65
45
30
38
40
45
Option D
The series is, (+ 1)^2, (+ 2)^2, (+ 3)^2, (+ 4)^2, (+ 5)^2,

9. 8, 16, 43, 168, 511, ?
1452
1234
1020
1842
2024
Option D
The series is, (+ 2)^3, (+ 3)^3, (+ 5)^3, (+ 7)^3, (+ 11)^3,

10. 2, 5, 12, 27, 58, ?
124
240
234
121
320
Option D
The series is, (* 2 + 1), (* 2 + 2), (* 2 + 3), (* 2 + 4), (* 2 + 5),