Question : Directions: If in a coding system, 38474 is coded as 47565, then how will 28464 be coded in the same coding system?
Option 1: 37337
Option 2: 73133
Option 3: 37555
Option 4: 37133
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Correct Answer: 37555
Solution :
Given:
38474 is coded as 47565.
Add 1 to the odd place digit and subtract 1 from the even place digit of 38474, to obtain the required code –
3 + 1 = 4; 8 – 1 = 7; 4 + 1 = 5; 7 – 1 = 6; 4 + 1 = 5
Thus, 38474 is coded as 47565.
Similarly, follow the same pattern for 28464 –
2 + 1 = 3; 8 – 1 = 7; 4 + 1 = 5; 6 – 1 = 5; 4 + 1 = 5
Thus, 28464 is coded as 37555. Hence, the third option is correct
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