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

- 23,38,68,113,?,248
180165173184170Option C

+15*1

+15*2

+15*3

+15*4

+15*5

? = 173 - 250,249,241,214,?,25
150851007792Option A

-1^3

-2^3

-3^3

-4^3

-5^3

? = 150 - 140,150,170,210,290,?
400225200330450Option E

+10

+20

+40

+80

+160

? = 450 - 472.5, ?,105,60,40,32
188195155175210Option E

/2.25

/2

/1.75

/1.5

/1.25

? = 210 - 33,34,70,213,856,?
45204285440040054440Option B

*1+1

*2+2

*3+3

*4+4

*5+5

? = 4285 - Find the length of the diagonal of a square having area 32 cm^2 more than the area of a circle of radius 14 cm.
3052504436Option E

Area of circle = pi* r*r = 22/7*14*14 = 616 cm^2

Area of square = 616 + 32 = 648 cm^2

Diagonal^2/2 = 648

Diagonal = 36 cm - The time taken by A and B together to complete the work is 36/5 days. If A is 50% efficient than B, find the time taken by A alone to complete twice the given work.
2915241220Option C

Let the time taken by B alone to complete the work be x. Time taken by A alone to complete the work = 2x/3 days

1/x + 1/(2x/3) = 5/36

=> x = 18 days

Time taken by A to complete the work = (18*2)/3 = 12 days

Required number of days = 12*2 = 24 days - By selling a cycle for Rs. 1500, shopkeeper’s loss was equal to (1/6)th of the cost price of cycle. At what price should he sell it to earn a profit of 25%?
Rs. 2000Rs. 2250Rs. 2550Rs. 2200Rs. 2050Option B

x/6 = x – 1500

=> x = 1800

Required SP = 1.25*1800 = Rs. 2250 - Tap A and B individually fill a tank in (3x+3) and (4x+2) resp. If Tap A is 20% more efficient than Tap B, then find the time taken by Tap A to fill (3/5)th of the tank.
10 hours6 hours8 hours7 hours9 hoursOption E

(3x+3)*1.2 = (4x+2)

=> x = 4

Time taken by A tap to fill the tank = (3*4+3) = 15 hours

Time taken by A tap to fill (3/5)th of the tank = 3/5*15 = 9 hours - A bag contains 12 black balls and 8 white balls. If x grey balls are added to the bag, then the probability of choosing a black ball decreased by 0.1 with respect to the probability of choosing a black ball from the bag when the grey balls were not added. Find the value of x.
46532Option A

Initially black balls in the bag

= 12/(12+8)

= 0.6

Probability of choosing a black ball after addition of x grey balls = 0.6- 0.1 = 0.5

12/(12+8+x) = 0.5

=> x = 4