Question : The least number of five digits, which has 123 as a factor, is:

Option 1: 10037

Option 2: 10086

Option 3: 10081

Option 4: 10063

Question : The least number of five digits which is exactly divisible by 9, 12, 15, 25 and 27 is:

Option 1: 10800

Option 2: 10250

Option 3: 10700

Option 4: 10600

Question : Let $x$ be the least number of 4 digits that when divided by 2, 3, 4, 5, 6 and 7 leaves a remainder of 1 in each case. If $x$ lies between 2000 and 2500, then what is the sum of the digits of $x$?

Option 1: 4

Option 2: 15

Option 3: 9

Option 4: 10

Question : The greatest number of five digits which is divisible by 13, 15, 18, and 21 is:

Option 1: 99120

Option 2: 98280

Option 3: 96840

Option 4: 95830

Question : Which one of the following is a factor of the sum of the first twenty-five natural numbers?

Option 1: 26

Option 2: 24

Option 3: 13

Option 4: 12

Question : The sum of the digits of a two-digit number is 10. The number formed by reversing the digits is 18 less than the original number. Find the original number.

Option 1: 81

Option 2: 46

Option 3: 64

Option 4: 60