**Direction :- Some equations are solved on the basis of a certain system. On the same basis find out the correct answer from among the from among the four alternatives for the unsolved equation in each question.**

**1. A = 8(64)128**

** B = 10(100)200**

** C = 12 (144) 288**

** D = 13 (?) ?**

A) 169, 338

B) 169, 335

C) 196, 338

D) 196, 335

**2. 50 – 62 = 40, 61 – 71 = 56, 92 – 50 = 55, 10 – 40 = ?**

A) 9

B) 34

C) 4

D) 24

**3. 13 + 15 + 16 = 764, 17 + 52 + 43 = 778, 34 + 63 + 16 = 797, 52 + 54 + 63 = ?**

A) 797

B) 997

C) 799

D) 979

**4. 5 (16) 4**

** 8 (14) 2**

** 10 (45) 5**

** 9 (?) 5**

A) 40

B) 42

C) 35

D) 50

**5. 7*4*5=33**

** 8*9*2=74**

** 5*6*5=35**

** 8*7*4=?**

A) 50

B) 65

C) 55

D) 60

**6. X = 8 (520) 512**

** Y = 12 (1740) 1728**

** Z = 9 (?) ?**

A) 729, 738

B) 739, 748

C) 738, 729

D) 748, 739

**7. 24 * 65 = 157, 54 * 34 = 130, 75 * 85 = ?,**

A) 343

B) 313

C) 212

D) 121

**8. 25 * 2 = 3**

** 36 * 7 = -1**

** 64 * 4 = 4**

** 9 * 3 = ?**

A) 2

B) 5

C) 6

D) 0

**9. 5 * 7 * 3 = 735**

** 7 * 6 * 4 = 647**

** 7 * 5 * 3 = 537**

** 9 * 4 * 6 = ?**

A) 649

B) 946

C) 469

D) None of these

**10. 27 * 64 * 125 = 12**

** 1 * 8 * 27 = 6**

** 1000 * 343 * 216 = ?**

A) 23

B) 32

C) 22

D) 24

**Solution :-**