# A2-digit number is 3 times the sum of its digits. If 45 is added to the number, its digits are interchanged. The sum of digits of the number is

1.  11

2.  9

3.  7

4.  5

4

9

Explanation :
No Explanation available for this question

# The number of digits in the square not of 625686734489 is

1.  4

2.  5

3.  6

4.  7

4

6

Explanation :
No Explanation available for this question

# The numbers 2272 and 875 are4ivided by a 3-digit number N, giving the same reminds. The Sum of the digits of N is

1.  10

2.  11

3.  12

4.  13

4

10

Explanation :
No Explanation available for this question

# The sum and product of two numbers are 12 and 35 respectively. The sum of their reciprocals will be

1.  12/35

2.  1/35

3.  35/8

4.  7/32

4

12/35

Explanation :
No Explanation available for this question

# The greatest among √7-√5, √5-√3, √9-√7, √11-√9 is

1.  √7-√5

2.  √5-√3

3.  √9-√7

4.  √11-√9

4

√5-√3

Explanation :
No Explanation available for this question

# A 4-digit number is formed by repeating a 2-digit number such as 1515, 3737, etc. Any number of this form is exactly divisible by

1.  7

2.  11

3.  13

4.  101

4

101

Explanation :
No Explanation available for this question

# One's digit of the number (22)23 is

1.  4

2.  6

3.  8

4.  2

4

8

Explanation :
No Explanation available for this question

# The rational number between 1/2 and 3/5 is

1.  2/5

2.  4/7

3.  2/3

4.  1/3

4

4/7

Explanation :
No Explanation available for this question

# The sum of digits of the smallest number which where multiplied by 900, gives a perfect cube is

1.  2

2.  3

3.  6

4.  9

4

3

Explanation :
No Explanation available for this question

1.  3

2.  4

3.  5

4.  6

4