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#29123
Anupama Cherukuri
Participant

for Challenge Question 2 :

In the Multiplication, the DM of the product of their DM will be equal to the DM of the Product of the original numbers.

4?2 X 74 = 33448

(4+? + 2 ) X DS of 74 is 2 = DS of 33448 is 4

(6 + ?)  times 2 = 4

so the Digit sum of the 6+? must be 11 in order to get the Digit Sum of 2 so the ? must be 5.

452 X 74 = 33448

DM check  = 2 X 2 =4

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