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

- 15, 21, 33, 51, 75, ?
74889591105Option E

15 + 6 × 1 = 21

21 + 6 × 2 = 33

33 + 6 × 3 = 51

51 + 6 × 4 = 75

75 + 6 × 5 = 105 - 4, 11, 25, 53, 109, ?
200252221233242Option C

4 +1 × 7 = 11

11 + 2 × 7 = 25

25 + 4 × 7 = 53

53 + 8 × 7 = 109

109 + 16 × 7 = 109 + 112 = 221 - 11, 15, 31, 67, 131, ?
222240231267255Option C

11 + 22 = 11 + 4 = 15

15 + 4^2 = 15 + 16 = 31

31 + 6^2 = 31 + 36 = 67

67 + 8^2 = 67 + 64 = 131

131 + 10^2 = 131 + 100 = 231 - 5, 7, 13, 25, 45, ?
6075627081Option B

5 + 1 × 2 = 7

7 + 2 × 3 = 13

13 + 3 × 4 = 25

25 + 4 × 5 = 45

45 + 5 × 6 = 75 - 483, 471, 435, 375, 291, ?
174159190183164Option D

483 – 1 × 12 = 483 – 12 = 471

471 – 3 × 12 = 471 – 36 = 435

435 – 5 × 12 = 435 – 60 = 375

375 – 7 × 12 = 375 – 84 = 291

291 – 9 × 12 = 291 – 108 = 183 - Tap A and B can fill a tank in (3x+3) hours and (4x+6) hours resp. Tap A is 50% more efficient than tap B. What is the value of x?
67523Option E

(3x+3)*1.5 = 4x+6

=>x = 3 - A shopkeeper bought a table and a chair for Rs.1500. He sold table at a profit of 25% and chair at a loss of 25%. If in the whole transaction he made neither profit nor loss. Find the cost price of chair.
Rs.750Rs.777Rs.744Rs.720Rs.765Option A

Let the CP of table be x.

And CP of chair be (1500 -x)

Now, 1.25x+0.75(1500-x) = 1500

=>x = 750

CP of chair = Rs.750 - Ram divided Rs.5700 among his three children P,Q and R such that P received 25% more than Q and R received 40% less than Q. What is the share of R?
12001238144015221671Option A

Let the amount received by Q be Rs.x and by P be Rs.1.25x.

x+1.25x +0.6x = 5700

=>x = 2000

Amount received by R = 0.6*2000 = 1200 - The average marks obtained by X,Y and Z is 56. The marks obtained by X and Y is 52. The ratio of marks obtained by X and Z is 5:8 resp. Find the marks obtained by Y.
5070644868Option C

Total marks = 56*3 = 168

Total marks obtained by X and Y = 52*2 = 104

Marks obtained by Z = 168-104 = 64

By Y = 64/8*5 = 40

By X = 104-40 = 64 - Sashi spends 25% and 20% of her income on rent and food resp. She spends 40% of the remaining income on clothes and thereby saves Rs.3465. Find the income.
Rs.1500Rs.14000Rs.13200Rs.10500Rs.11200Option D

Let the income be Rs.100

Amount spend on rent and food = (25+20)% of 100x = Rs.45x

Amount spend on clothes = 0.4(100x – 45x) = Rs.22x

Now, 33x = 3465

=>x = 105

Income = Rs.10500