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Question

If 1 is added to each odd digit and 2 is added to each even digit in the number 6134527, what will be the sum of the last and first digits of the new number thus formed?

The correct answer is
16

Number Transformation and Sum Calculation

The problem asks us to modify a given number, $6134527$, based on specific rules for its digits and then find the sum of the first and last digits of the newly formed number.

Digit Transformation Process

The rules are:

  • Add 1 to each odd digit.
  • Add 2 to each even digit.

Let's apply these rules to the number $6134527$:

  • Digit $6$ (even): $6 + 2 = 8$
  • Digit $1$ (odd): $1 + 1 = 2$
  • Digit $3$ (odd): $3 + 1 = 4$
  • Digit $4$ (even): $4 + 2 = 6$
  • Digit $5$ (odd): $5 + 1 = 6$
  • Digit $2$ (even): $2 + 2 = 4$
  • Digit $7$ (odd): $7 + 1 = 8$

New Number Formation

Combining the transformed digits, the new number formed is $8246648$.

Sum of First and Last Digits

Identify the first and last digits of the new number $8246648$:

  • First digit = $8$
  • Last digit = $8$

Calculate the sum:

Sum = First digit + Last digit

Sum = $8 + 8$

Sum = $16$

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Important Questions from Operations on Place Value

  1. In a certain code language, TOGETHER is coded as 119 and MASTER is coded as 87. How will REVERSE be coded in that language?

  2. In a certain code, if BRDKE is written as AQCJD, then SLEEP will be written in that code as:

  3. In a certain code language, ‘BULB’ is written as ‘190’, ‘CALM’ is written as ‘150’. What is the code for ‘DOES’ in that code language

  4. In a certain code language, RAMP is coded as 3611332. How will DELL be coded in that language?

  5. In a code language, 'SPACE' is written as '5-91' and 'ROTTEN' is written as '6-70'. How will 'MEAN' be written in that language?

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