symbol substitution Practice Questions Answers Test with Solutions & More Shortcuts
Question : 31
If x means +, + means ÷, – means x and ÷ means -, then 8 x 7 – 8 + 40 ÷ 2 =?
a) 1
b) 7$2/5$
c) 8$3/5$
d) 44
Answer »Answer: (b)
Using the correct symbols,
we have: Given expression
= 8 + 7 x 8 ÷ 40 - 2
= 8 + 7 x $1/8$ - 2
= 6 + = 6 + $1/5$
= $ 37/5$ = 7$2/5$
Question : 32 [I.B.P.S. 2002]
If P means 'division', T means 'addition', M means ‘subtraction' and D means 'multiplication', then what will be the value of the expression
12 M 12 D 28 P 7 T 15?
a) -30
b) -15
c) 15
d) 45
e) None of these
Answer »Answer: (e)
Using the correct symbols,
we have: Given expression
= 12 - 12 x 28 ÷ 7 + 15
= 12 - 12 x 4 + 15
= 12 - 48 + 15
= 27 - 48 = -21.
Question : 33 [Bank P.O. 2003]
If ‘when' means ‘x', 'you' means ‘÷', 'come' means ‘-’and 'will' means ‘+’, then what will be the value of "8 when 12 will 16 you 2 come 10"?
a) 45
b) 94
c) 96
d) 112
e) None of these
Answer »Answer: (b)
Using the correct symbols,
we have: Given expression
= 8 x 12 + 16 ÷ 2 - 10
= 96 + 8 - 10
= 104 - 10 = 94.
Question : 34 [C.P.O. 2005]
If ‘+' stands for 'division', ‘÷' stands for ‘multiplication', ‘x’ stands for 'subtraction' and ‘-’ stands for 'addition' which one of the following is correct?
a) 18 ÷6 x 7 + 5 - 2 = 22
b) 18 x 6 + 7 ÷ 5 - 2 = 16
c) 18 ÷6 -7 + 5 x 2 = 20
d) 18 + 6 ÷ 7 x 5 - 2 = 18
Answer »Answer: (d)
Using the proper notations in (d),
we get the statement as:
18 ÷ 6 x 7 - 5 + 2
= 3 x 7-5 + 2
= 21 - 5 + 2 = 18.
Question : 35 [S.S.C 2003]
If ‘x’ stands for 'addition', ‘<’ for 'subtraction', ‘+’ for 'division', ‘>’ for 'multiplication', ‘-’ for 'equal to', ‘÷' for 'greater than' and ‘=’ for ‘less than', then state which of the following is true?
a) 3 x 4 > 2 -9 + 3 < 3
b) 5 x 3 < 7 ÷ 8+ 4 x 1
c) 5 > 2 + 2 = 10 < 4 x 8
d) 3x 2 < 4 ÷ 16 > 2 + 4
Answer »Answer: (c)
Using the proper notations in (c),
we get the statement as:
5 x 2 ÷ 2 < 10 - 4 + 8
or 5 x 1< 18 - 4
or 5 < 14,
which is true.
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