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The sum of a two digit number and the nu...

The sum of a two digit number and the number formed by interchanging the digits is 110. If 10 is subtracted from the first number, the new number is 4 more than 5 times the sums of the digits of the first number. Find the first number.

Text Solution

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The correct Answer is:
` therefore ` The number is ` (10xx 6+4) =64`
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Knowledge Check

  • The number of 10 digit number that can be written by using the digits 2 and 3 is

    A
    `""^(10)C_(2)+""^(9)C_(2)`
    B
    `2^(10)`
    C
    `2^(10)-2`
    D
    `10!`

  • The number of 10 digit number that can be written by using the digits 2 and 3 is

    A
    `.^(10)C_(2) + .^(9)C_(2)`
    B
    `2^(10)`
    C
    `2^(10)- 2`
    D
    10!

  • The sum of all 4 digit numbers of different digits formed with the digits 1, 2, 5 and 6 is

    A
    93324
    B
    90334
    C
    93234
    D
    90234

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