If 3 is added to each even digit and 2 is added to each odd digit in the number 4751236, what will be the sum of the first and last digits in the new number thus formed?
16
Classify each digit of 4751236 as even or odd and apply the stated rule.
Even digits (add 3): 4 → 7, 2 → 5, 6 → 9.
Odd digits (add 2): 7 → 9, 5 → 7, 1 → 3, 3 → 5.
Rewriting the digits in order gives the new number 7973559.
Sum of the first and last digits = 7 + 9 = 16.
Hence, the correct answer is 16.
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Important Questions from Operations on Place Value
In a certain code, if BRDKE is written as AQCJD, then SLEEP will be written in that code as:
In a certain code language, RAMP is coded as 3611332. How will DELL be coded in that language?
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?
If in a coding system, ORATORY is coded as 116 and RAVENOUS is coded as 119, then how will IRIDOLOGY be coded in the same coding system?
In a certain code language, GRAPES is written as 66. How will PRAISE be written in the same language?
