**Directions(1-5):** Find out the odd number from the following series.

- 135,156,198,263,345,450
198263156135345Option B

+21*1

+21*2

+21*3

+21*4

+21*5

261 should be in place of 263. - 121,94,158,68,249,-94
1211589468-94Option D

-3^3

+4^3

-5^3

+6^3

-7^3

33 should be in place of 68. - 25,26,42,91,191,361
36142269125Option A

+1^2

+4^2

+7^2

+10^2

+13^2

360 should be in place of 361. - 107,138,169,198,231,262
107169198138231Option C

+31

+31

+31

+31

+31

200 should be in place of 198. - 7,22,68,207,620,1880
76862020722Option C

+3*1

+3*2

+3*3

+3*4

+3*5

625 should be in place of 620. - A person borrowed Rs.16650 on simple interest at the rate of 7% per annum. Find the total amount paid by the person after 4 years.
Rs. 23050Rs. 21312Rs. 22520Rs. 22000Rs. 20202Option B

Total amount paid by the person

= (16650*7*4)/100 + 16650

= 4662 + 16650 = Rs. 21312 - A man has an average speed of 45 km/hr. While going from A to B and returns from B to A with an average speed of x km/hr. Find the value of x, if the average speed of the whole journey is 36 km/hr.
10 km/hr.40 km/hr.30 km/hr.20 km/hr.50 km/hr.Option C

36 = (2*45*x)/(45+x)

=> 36*(45+x) = 90x

=> x = 30 km/hr. - X and Y can complete a work together in 24/5 days and Y and Z together and X and Z together can complete the same work in 8 days and 4 days resp. In how many days can Z complete the work alone?
1014181216Option D

1/x+1/y = 5/24 —–(1)

1/y+1/z = 1/8 —–(2)

1/x+1/z = ¼ ——(3)

From three equations, we get

2*(1/x+1/y+1/z)=7/12

=> z = 12 days - The sum of the present ages of A,B and C is 114 years. The ratio of the present ages of B and C is 3:5 and A’s present age is 10 more than C’s present age. What is the present age of B?
2822262024Option E

(5x+10)+3x+5x = 114

=> 13x + 10 = 114

=> x = 8

Present age of B = 24 years - R and S can together complete a task in 180/7 days. If the number of days taken by R to complete the task alone is 60 days, then how many days would it take S to complete the task alone?
45 days40 days48 days30 days37 daysOption A

R’s one days’ of work =1/60

Now, 1/60+1/x = 7/180

=>x = 45 days