Mathematical operation and symbol notation
 If L denotes x
M denotes ÷
P denotes +
Q denotes 
then 16 P 24 M 8 Q 6 M 2 L 3 = ?

 10
 9
 12
 11

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10
Correct Option: A
10
 If > denotes +, < denotes  , + denotes ÷ , ^ denotes x ,  denotes = , x denotes > and = denotes < , choose the correct statement of the following :

 13 > 7 < 6 + 2 = ^ 4
 9 > 5 > 4  18 + 9 > 16
 9 < 3 < 2 > 1 x 8 ^ 2
 28 + 4 ^ 2 = 6 ^ 4 + 2

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9 + 5 + 4 = 18 ÷ 9 + 16 = 18 = 18
Correct Option: B
9 + 5 + 4 = 18 ÷ 9 + 16 = 18 = 18
 If, + stand for division; x stands for addition; stands for multiplication; ÷ stands for subtraction, which of the following is correct ?

 46 x 6 ÷ 4  5 + 3 = 74
 46  6 + 4 x 5 ÷ 3 = 71
 46 ÷ 6 x 4  5 + 3 = 75.5
 46 x 6  4 + 5 ÷ 3 = 70.1

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After changing '+' = ÷ , '' = x
'x' = '+' '÷' = 
the equation, 46  6 + 4 x 5 ÷ 3 = 71
CHS = 46 x 6 ÷ 4 + 5  3
= 276 ÷ 4 + 5  3
= 69 + 5  3
= 74  3 = 71 R.H.S.Correct Option: B
After changing '+' = ÷ , '' = x
'x' = '+' '÷' = 
the equation, 46  6 + 4 x 5 ÷ 3 = 71
CHS = 46 x 6 ÷ 4 + 5  3
= 276 ÷ 4 + 5  3
= 69 + 5  3
= 74  3 = 71 R.H.S.
 After interchanging + and , 8 and 7, which one of the following becomes correct ?

 7 x 8 + 6  9 = 25
 8  7 + 3 x 5 = 35
 6 + 8 x 2  7 = 0
 8 x 2 + 7  6 = 9

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After changing '+' and '' , 8 and 7 the appropriate equation is,
6 + 8 x 2  7 = 0
L.H.S. = 6  7 x 2 + 8
6  14 + 8
14  14 = 0 = R.H.S.Correct Option: C
After changing '+' and '' , 8 and 7 the appropriate equation is,
6 + 8 x 2  7 = 0
L.H.S. = 6  7 x 2 + 8
6  14 + 8
14  14 = 0 = R.H.S.
 If + stands for division; x stands for addition;  stands for multiplication, ÷ stands for subtraction, Which of the following is correct ?

 25 x 3  7 ÷ 8 + 12 = 18
 25 + 3 x 7  8 ÷ 12 = 10.89
 25  3 ÷ 7 x 8 + 12 = 132
 25 ÷ 3 x 7  8 + 12 = 19.3

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25 ÷ 3 x 7  8 + 12 = 19.3
Correct Option: D
25 ÷ 3 x 7  8 + 12 = 19.3