In this question, some equations are solved on the basis of a certain system. On the same basis fid out the correct answer from amongst the four alternatives for the four alternatives for the unsolved equation.

7 x 5 x 6 = 576
4 x 2 x 5 = 245
8 x 2 x 5 = ? 

• 258

• 285

• 582

• 852

If P denotes multiple, T denotes subtraction, M denotes addition, B denotes division, then 28B7P8T6M4 = ?

• 28

• 30

• 32

• 34

If '+' means '÷', '-' means 'x', '÷' means '+' and 'x' means '-', then 36 x 12 +4 ÷ 6 + 2 -3 = ?

• 2

• 

• 18

• 42

some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis:

8 x 7 x 6 = 765,
5 x3 x  2 = 421
9 x6 x 4 =?

• 583

• 853

• 841

• 481

If 'x' means 'addition', '-' means 'division','÷' means 'subtraction' and '+' means 'multiplication', then which of the equation is correct?

• 25 + 10 - 5 ÷10 x 3 =43

• 25 - 10 x 5 + 10 ÷ 3 = 72

• 25 x 10 ÷ 5 + 10 -3 = 12

• 25 ÷ 10 + 5 x 10 ÷3 = 18

In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.

53 -34 = 5334, 65-46 = 6456, 75-24=?

• 7542

• 7524

• 7452

• 7254

In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.

462 = 551, 398 = 487, 856 = ?

• 745

• 773

• 945

• 743

48.

If A denotes '+', B denotes '-', C denotes 'x' and D denotes '÷', then which of the following statement is true?

• 8B6D2A4C3 = 15 

• 8A8B8C8 = -48

• 9C9B9D9A9 = 17

• 3A3B3C3A3D3 = 4

A Prime number between 10 and 50 remains unchanged if its digits are reversed. Then a square of such a number is:

• 121

• 484

• 1089

• 1936

If '+' means 'x', '-' means '÷', 'x' means '-' and '÷' means '+', then what will be the value of 16 ÷ 4 x 10 - 5 + 8 = ?

• 12

• 8

• 4

• 2