Question

4921 X D = ABBBD, then th esum of the digits of ABBB X D is ?

Answer 1

Answer:

24108

15

Step-by-step explanation:

4921

*     D

ABBBD

D * 1 = D

D * 2 = B   so D ≠ 1

=> B = 2D  or 2D - 10

if D = 2 Then B = 4

then 9D = 18 not possible as it should end with B = 4

if D = 3 then B = 6

9D = 27 not possible

if D = 4 Then B = 8

9D = 36 not possible

if D = 5 Then B = 0

9D = 45 + 1 = 46 not possible

if D = 6 Then B = 2

9D = 54 + 1 = 55 not possible

if D = 7 Then B = 4

9D = 63 + 1 = 64  possible

if D = 8 Then B = 6

9D = 72 + 1 = 73 not possible

if D = 9 Then B = 8

9D = 72 + 1 = 73 not possible

D = 7

 4921

*     7

34447

A = 3

B = 4

D = 7

ABBB * D

3444

*     7

24108

Sum of Digits = 2 + 4 + 1 + 0 + 8 = 15