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If the first and second digits from the ...

If the first and second digits from the left of each of the given numbers are interchanged and one is subtracted from the third digit, then what is the sum of digits of the third highest number thus formed?
375 463 567 728 639

A

12

B

17

C

16

D

15

Text Solution

Verified by Experts

The correct Answer is:
A
After interchanging the first and second digits and subtracting 1 from the third digit, we get
734 642 656 277 368
The descending order of the above numbers is
734 656 642 368 277
Third highest number = 642
`:.` Required sum = 6 + 4 + 2 = 12
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