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

- 9,6,9,24,108,?
874795888788840Option C

*0.5+1.5

*1+3

*2+6

*4+12

*8+24

? = 888 - 15,30,50,80,150,?
215200210201220Option E

Difference of difference

+15,+20,+30,+50,+90

+5,+10,+20,+40

? = 220 - 1511,302,75,24,?,5
1014182011Option A

(1511 – 1)/5

(302 – 2)/4

(75 – 3)/3

(24 – 4)/2

(10 – 5)/1

? = 10 - 7,10,18,42,90,?
210188195205207Option A

Difference 3,8,24,48,120

2^2-1

3^2-1

5^2-1

7^2-1

11^2-1

? = 210 - 48,24,72,18,90,?
1520161910Option A

/2

*3

/4

*5

/6

? = 15 - Average salary of A and B is 3000. If salary of A and B increased by 40% and 20% resp. then their salary is increased by 32%. Salary of A is what percent more than salary of B before increment?
90%70%50%80%60%Option C

Let the salary of A and B be x and Y resp.

x+y = 2*3000 = 6000 —–(1)

1.4x + 1.2y = 1.32 * 6000= 7920 —–(2)

On solving these two equations, we get

x = 3600

y = 2400

Required% = (3600- 2400)/2400*100 = 50% - Ratio of speed of A and B tp cover a distance is 3:4. If B covers the distance 30 minutes earlier than A. Find the time taken by A tp cover the distance.
2 hours5 hours3hours1 hours4 hoursOption A

Ratio of speed = 3:4

Ratio of time = 4:3

A : B

4:3 = Difference = 1 = 30 minutes

Time taken by A = 4*30 = 120 minutes = 2 hours - X and Y can complete a work together in 7.2 days. If X and Y started the work together but Y left after 6 days then total work completed in 8 days. Efficiency of X to complete the work is what percent more or less than efficiency of Y.
60% more30% more50% more40% more10% moreOption C

Let X and Y complete the work in x and y days resp.

1/x + 1/y = 1/7.2 —–(1)

Also, 8/x+6/y = 1 —–(2)

Solving both the equations, we get

x = 12

y = 18

Required% = (18-12)/12*100 = 50% more - P,Q and R started a business with Rs.16000, Rs.12000 and Rs.8000 resp. After a year, if all three divide the profit equally then time given by P in business is what percent of the time given by Q in business?
77%81%66%75%70%Option D

Let the time given by P, Q and R is x,y and z

resp.

16000*x*1 : 12000*y*1 : 8000*z*1 = 3:4:6

Required% = Â¾*100 = 75% - A well of 16 meter diameter is dug for 9 m deep. The soil taken out of it has spread evenly all-around of well in shaped of circular ring of width 4 m to form an embarkment. Find the height of embankment.
9.4 m7.2 m6.7 m8.8 m6.1 mOption B

Let h be the height of embankment.

pi*8*8*9 = pi*(12^2 â€“ 8^2)*h

=>h = 7.2 m

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