Top

Mathematical Operations

Important Instructions
71.

If, 1*2= 1,
2*3= ­1 and
3*4= ­5, Then find the value of 7*9= ?

Answer: A

No answer description available for this question.
 

Enter details here

72.

If V means ‘divided by, – means ‘multiplied by’, V means ‘minus and V means ‘plus’, which of the following will be the value of the expression 16+ 8- 4 + 2 x 4?

Answer: B

No answer description available for this question.

Enter details here

73.

If 17 + 17 = 2895 18 + 18 = 3245 19 + 19 = 3615 then 23 + 23 = ?

Answer: D

No answer description available for this question.
 

Enter details here

74.

Which of the following interchanges in signs and numbers will make the given equation correct?
8 x 9 + 2 = 74

Answer: B

No answer description available for this question.
 

Enter details here

75.

If ‘+’ stands for ‘multiplication’, ‘<’ stands for ‘division’, ‘÷’ stands for ‘subtraction’, ‘–‘ stand for ‘addition’ and ‘×’ stands for ‘greater’ than. Identify which expression is correct?

Answer: C

20 ÷ 2 × 10 – 4 + 6 > 100

= 10 × 10 – 4 + 6 > 100

= 106 – 4 > 100

=   102 > 100.

Enter details here

76.

If x stands for ‘addition’, + stands for ‘subtraction’, + stands for ‘multiplication’ and – stands for ‘division’, then 20 x 8 + 8 – 4 + 2 – ?

Answer: C

No answer description available for this question.

Enter details here

77.

If 13*45 = 29 ,
24*58 = 41 ,
74*32 = 53 ,
what should 97*47 be?

Answer: B

No answer description available for this question.
 

Enter details here

78.

In a certain code language, '÷' represents '+', '-' represents 'x', '+' represents '÷' and 'x' represents '-'. Find out the answer to the followingquestion. 8 ÷ 14 - 20 + 5 x 2 = ?

Answer: B

No answer description available for this question.
 

Enter details here

79.

1/2 - 1/8 =

Answer: B

Now to find the difference in the given fractions, 1/2 - 1/8

First take the LCM of 2 & 8

LCM of 2 & 8 is 8

Then,

1/2 - 1/8

= (4 - 1)/8

= 3/8

Hence, 1/2 - 1/8 = 3/8.

Enter details here

80.

In a cricket match, five batsmen P, Q, R, S and T scored an average of 36 runs. S Scored 5 more than T; T scored 8 fewer than P; Q scored as many as S and T combined; and Q and R scored 107 between them. How many runs did T score ?

Answer: A

Let the runs scored by P, Q, R, S and T be  a, b, c, d and e

From given data,

a + b + c + d + e = 36 x 5 = 180
b + c = 107
Let a = x
e = x-8
d = x-3
now 3x - 11 + 107 = 180
3x = 84
x = 28
e's score = 28-8 = 20

Enter details here

Loading…
Tags: Mathematical Operations Questions and Answers || Mathematical Operations MCQ Questions and Answers || Mathematical Operations GK Questions and Answers || Mathematical Operations GK MCQ Questions || Mathematical Operations Multiple Choice Questions and Answers || Mathematical Operations GK || GK on Mathematical Operations || Reasoning Questions and Answers || Reasoning MCQ Questions and Answers || Reasoning GK Questions and Answers || GK on Reasoning