# If we write down all the natural numbers from 259 to 492 side by side get a very large natural number 259260261....491492. How many 8's will be used to write this large natural number

1.  32

2.  43

3.  52

4.  53

4

53

Explanation :
No Explanation available for this question

# How many five digit multiples of 11 are there, if the five digits are 3,4,5,6 and 7 in the same order

1.  10

2.  11

3.  12

4.  13

4

12

Explanation :
No Explanation available for this question

# What is the remainder when 7187 is divided by 800

1.  143

2.  243

3.  343

4.  443

4

343

Explanation :
No Explanation available for this question

# Two positive integers differ by 4 and the sum of their reciprocals is 10/21. One of the numbers is:

1.  3

2.  1

3.  5

4.  21

4

3

Explanation :
No Explanation available for this question

1.  100

2.  105

3.  125

4.  75

4

100

Explanation :
No Explanation available for this question

# 5 6 - 1 is divisible by

1.  13

2.  31

3.  5

4.  None of these

4

31

Explanation :
No Explanation available for this question

# Three bells chime at an interval of 18, 24 and 32 minutes respectively. At a certain n time they begin to chime together. What length of time will elapse before they chime together again

1.  2 hours 24 minutes

2.  4 hours 48 minutes

3.  1 hour 36 minutes

4.  5 hours

4

4 hours 48 minutes

Explanation :
No Explanation available for this question

# For the product n(n + 1) (2n + 1), nN, which one of the following is necessarily false

1.  It is always even

2.  Divisible by 3.

3.  Always divisible by the sum of the square of first n natural numbers

4.  Never divisible by 237

4

Never divisible by 237

Explanation :
No Explanation available for this question

# The remainder obtained when a prime number greater than 6 is divided by 6 is:

1.  1 or 3

2.  1 or 5

3.  3 or 5

4.  4 or 5

4

1 or 3

Explanation :
No Explanation available for this question

1.  8

2.  10

3.  15

4.  22

4