20
Q:

The product of a number and its multiplicative inverse is

A) 1 B) 0
C) -1 D) Infinity

Answer:   A) 1



Explanation:

The mutiplicative inverse of a number is nothing but a reciprocal of a number.

Now, the product of a number and its multiplicative inverse is always equal to 1.

 

For example :

Let the number be 15

Multiplicative inverse of 15 = 1/15

The product of a number and its multiplicative inverse is = 15 x 1/15 = 1.

Q:

The two given expressions on both the side of the ‘=’ sign will have the same value if two numbers from either side or both side are  interchanged. Select the correct numbers to be interchanged from the given options.

4 + 6 × 7 − 27 ÷ 3 = 7 × 8 − 4 + 39 ÷ 3

 

A) 8, 7 B) 6, 8
C) 3,4 D) 6,4
 
Answer & Explanation Answer: B) 6, 8

Explanation:
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0 130
Q:

Four number-pairs have been given, out of which three are alike in some mannerandoneis different. Select the number-pair that is different.

 

A) 16, 8 B) 36, 2
C) 14,8 D) 28, 5
 
Answer & Explanation Answer: D) 28, 5

Explanation:
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0 116
Q:

What is the smallest integer that is a multiple of 5, 8 and 15?

 

A) 600 B) 120
C) 60 D) 40
 
Answer & Explanation Answer: B) 120

Explanation:
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2 482
Q:

Which number will fit in '?' place in the following series?

 

12, 23, 45, 89, ?

 

A) 175 B) 176
C) 177 D) 178
 
Answer & Explanation Answer: C) 177

Explanation:
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7 1221
Q:

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark (?) in figure C.

 

 

A) 61 B) 21
C) 16 D) 81
 
Answer & Explanation Answer: C) 16

Explanation:
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1 478
Q:

The equation of a line is given by 4y-6x+9=0. Find the slope of other line which is perpendicular to it.

 

A) -2/3 B) 2/3
C) 3/2 D) -3/2
 
Answer & Explanation Answer: A) -2/3

Explanation:
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2 581
Q:

What will be the 20th term in the given sequence?

 

-50, -47, -44, _

 

A) -10 B) 10
C) -7 D) 7
 
Answer & Explanation Answer: D) 7

Explanation:
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11 2017
Q:

In the given series of numbers how many 7's are there which are immediately followed by 9 and immediately not preceeded by 5 ?

 

A) 6 B) 2
C) 1 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:
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5 827