# Quant Test for IBPS PO Prelims Exam set – 9

Directions(1-5): Find the wrong number of the following number series.

1. 10,22,46,82,130,189
10
22
189
46
82
Option C
+6*2
+6*4
+6*6
+6*8
+6*10

2. 54,67,81,96,112,128
67
128
54
112
81
Option B
+13,+14,+15,+16,+17

3. 22,30,46,70,104,142
104
22
30
46
70
Option A
+8*1
+8*2
+8*3
+8*4
+8*5

4. 27,38,51,65,83,102
65
27
38
51
83
Option A
5^2+2
6^2+2
7^2+2
8^2+2
9^2+2
10^2+2

5. 1,16,128,512,1024,1022
16
1022
1
512
1024
Option B
*16
*8
*4
*2
*1

6. Anuj invested a certain sum of money in a simple interest bond, that value grew to Rs. 300 at the end of 3 year and to Rs. 400 at the end of another 5 year. Then what was the rate of interest in which he invested his sum?
2.15%
5.55%
6.73%
8.33%
4.14%
Option D
P*R*3/100 + P = 300 –(i)
P*R*8/100 + P = 400 –(ii)
From (i) and (ii)
P*R*5/100 = 100
P*R = 2000—(iii)
Sub (iii) in (i)
6000/100 + P = 300
P = 240
240*R = 2000
=> R = 8.33%

7. The sum of ages of family members (both children and parents) is 360 years.The total ages of children and parents are in the ratio 2:1 and the ages of wife and husband are in the ratio 5:7.What will be the age of husband?
30 years
40 years
50 years
70 years
60 years
Option D
Sum of ages is 360 years.
The ratio of children and parents ages is 2:1.
Total age of parents = 360 x 1 / 3 = 120 years
Ratio of wife and husband age is 5:7.
Therefore, the age of husband = 120 x 7 / 12 = 70 years

8. The driver of an ambulance sees a college bus 40 m ahead of him after 20 seconds, the college bus is 60 meter behind. If the speed of the ambulance is 30 km/h, what is the speed of the college bus?
13 kmph.
16 kmph.
10 kmph.
12 kmph.
19 kmph.
Option D
Relative Speed = (Total distance)/total time
= (60+40) /20 = 5 m/s = (5*18)/5 = 18 kmph
Relative Speed = (speed of ambulance – speed of College bus)
Speed of College bus = speed of ambulance – relative speed.
= 30-18 = 12 kmph.

9. A trader sells Rice to a customer at a profit of x% over the cost price, besides if he cheats his customer by giving 950 g instead of 1Kg. Thus his overall percentage is 20%. Then what is the value of x?
12%
19%
17%
10%
14%
Option E
1000*(100+x/100) = 950*120/100
x = 14%

10. A box contains 4 red, 5 black and 6 green balls. 3 balls are drawn at random. What is the probability that all the balls are of same colour?
31/459
33/450
30/457
34/455
35/451
Option D
(4c3 + 5c3 + 6c3)/15c3 = 34/455