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#29881
Savita P Kulkarni
Participant

Challenge 5 –

3ab*61 = 19947

Digit Sum = 3–*7=3

I tried 12 which gives DS of L as 4 and we want it to be 3.

Next – 10 will give us left side DS as 1

11 will make the DS 8

13 gives 4

23 gives 2

24 gives 9

45 gives DS as 345 *7= 21=3

So the answer is 345*7 = 3(DS)

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