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

- 10,22,46,82,130,189
10221894682Option C

+6*2

+6*4

+6*6

+6*8

+6*10

190 instead of 189. - 54,67,81,96,112,128
671285411281Option B

+13,+14,+15,+16,+17

129 instead of 128. - 22,30,46,70,104,142
10422304670Option A

+8*1

+8*2

+8*3

+8*4

+8*5

102 instead of 104. - 27,38,51,65,83,102
6527385183Option A

5^2+2

6^2+2

7^2+2

8^2+2

9^2+2

10^2+2

66 instead of 65. - 1,16,128,512,1024,1022
16102215121024Option B

*16

*8

*4

*2

*1

1024 instead of 1022. - 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% - 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 years40 years50 years70 years60 yearsOption 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 - 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. - 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% - 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?
31/45933/45030/45734/45535/451Option D

(4c3 + 5c3 + 6c3)/15c3 = 34/455