# Mixed Quantitative Aptitude Questions Set 125

Directions(1-5): Find the missing term ‘?’ of the following series.

1. 23, 50, 108, 232, 492, ?
1100
1028
1008
990
1120
Option B
× 2 + 4, × 2 + 8, × 2 + 16, × 2 + 28, × 2 + 44
? = 1028

2. 2, 60, 10, 120, 30, ?
116
200
210
190
185
Option C
1^3+1
4^3-4
2^3+2
5^3-5
3^3+3
6^3-6
? = 210

3. 11,14,19,28,43, ?
50
58
66
70
72
Option C
Difference of difference
? = 66

4. 7,5,7,17,63, ?
440
300
415
320
309
Option E
*1-2
*2-3
*3-4
*4-5
*5-6
? = 309

5. 4,3,4,7,15, ?
38.5
22.9
24.8
33.3
30.2
Option A
*0.5+1
*1+1
*1.5+1
*2+1
*2.5+1
? = 38.5

6. A can do a piece of work in 8 days which B can destroy in 3 days. A has worked for 6 days, during the last 2 days of which B has been destroying. How many days must A now work alone to complete the work?
6(1/9) Days
4(1/8) Days
3(1/2) Days
7(1/3) Days
5(1/6) Days
Option D
In 6 days part of the work done by A = 6/8 = ¾
During 2 days, part of the work destroyed by B = 2/3
Work done = 3/4 – 2/3 = 1/12
Remaining work = 1 – 1/12 = 11/12
Required no of days = 11/12 × 8 = 7(1/3) Days

7. A trader sells two bullocks for Rs. 8,400 each, neither losing nor gaining in total. If he sold one of the bullocks at a gain of 20%, the other is sold at a loss of:
16(1/5)%
12(3/8)%
8(1/6)%
14(2/7)%
10(1/9)%
Option D
S.P. of two bullock = 8400 + 8400 = Rs. 16800
CP of first bullock = = 7000
CP of second bullock =16800 – 7000
Required % loss = [9800-8400]/9800*100 = 14(2/7)%

8. Difference between female employees of HR dept. in all companies together (excluding company S) and the female employees of Marketing dept. in all companies together (excluding company Q)?
143
139
151
179
162
Option B
Required difference = (56 + 65 + 70 + 54) – (28 + 35 + 22 + 21) = 139

9. A and B are partners in a business. They invest in the ratio 5 : 6, at the end of 8 months A withdraws. If they receive profits in the ratio of 5 : 9, find how long B’s investment was used?
14
16
12
18
10
Option C
5x : 6x
Let B investment was used for y months
8*5x : 6x*y = 5 : 9
y= 12

10. There are 3 red balls, 4 blue balls and 5 white balls. 2 balls are chosen randomly. Find probability that 1 is red and the other is white.
1/20
5/22
3/17
8/25
4/21
Option B
Probability = [3C1*5C1]/12C2 = 5/22