Find the total number of 9 digit numbers having all different digits.

Find the sum of all two digit numbers greater than 50 which when divided by 7 leave a remainder of 4.

State true or false The cube of a two digit number may have seven or more digits.

State true or false The cube of a two digit number may be a three digit number.

Sum of the digits of a two-digit number is 9. When we interchange the digits, it is found that the resulting new number is greater than the original number by 27. What is the two-digit number?

Find the sum of all the two-digit natural number which are divisible by 4.

Find the sum of all three digit numbers which leave the remainder 3 when divided by 5.

State true or false The cube of a single digit number may be a single digit number.

Find the sum of all two digit natural numbers which when divided by 3 yield 1 as remainder.

Find the sum of all three digit natural number which is divisible by 13.

One of the two digits of a two digit number is three times the other digit. If you interchange the digits of this two-digit number and add the resulting number to the original number, you get 88. What is the orginal number?