The largest natural number by which the product of three consecutive even natural numbers is always divisible, is:

1.  16

2.  24

3.  48

4.  96

View Answer  
4
Correct Answer :

48


Explanation :
No Explanation available for this question

The sum of three consecutive odd numbers is always divisible by ; I.2, II.3, III.5, IV.6

1.  Only I

2.  Only II

3.  Only I and III

4.  Only II and IV

View Answer  
4
Correct Answer :

Only II


Explanation :
No Explanation available for this question

The difference between the squares of two consecutive odd integers is always divisible by:

1.  3

2.  6

3.  7

4.  8

View Answer  
4
Correct Answer :

8


Explanation :
No Explanation available for this question

A number is multiplied by 11 and 11 is added to the product. If the resulting number is divisible by 13, the smallest original number is:

1.  12

2.  22

3.  26

4.  53

View Answer  
4
Correct Answer :

12


Explanation :
No Explanation available for this question

The sum of the digits of a 3-digit number is subtracted from the number. The resulting number is:

1.  Divisible by 6

2.  Divisible by 9

3.  Divisible neither by 6 nor by 9

4.  Divisible by both 6 and 9

View Answer  
4
Correct Answer :

Divisible by 9


Explanation :
No Explanation available for this question

If x and y are positive integers such that (3x + 7y) is a multiple of 11, then which of the following will also be divisible by 11

1.  4x + 6y

2.  x + y + 4

3.  9 x + 4y

4.   4 x – 9y

View Answer  
4
Correct Answer :

4 x – 9y


Explanation :
No Explanation available for this question

A 3-digit number 4a3 is added to another 3- digit number 984 to give the four-digit number 13b7, which is divisible by 11. Then, (a + b) is;

1.  10

2.  11

3.  12

4.  15

View Answer  
4
Correct Answer :

10


Explanation :
No Explanation available for this question

The largest number that exactly divides each number of the sequence (15-1),(25-12),(35-3),…….,(n5-n), ……..is :

1.   1

2.  15

3.  30

4.  120

View Answer  
4
Correct Answer :

30


Explanation :
No Explanation available for this question

The greatest number by which the product of three consecutive multiples of 3 is always divisible by is:

1.  54

2.  81

3.  162

4.  243

View Answer  
4
Correct Answer :

162


Explanation :
No Explanation available for this question

The smallest number to be added to 1000 so that 45 divides the sum exactly is :

1.  10

2.  20

3.  35

4.  80

View Answer  
4
Correct Answer :

35


Explanation :
No Explanation available for this question
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