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Cryptarithmetic Multiplication 29

Cryptarithmetic_MULTIPLICATION-29

1. Which of the following set contains even numbers only ? 
(a) M, S, H (b) Z, S, X (c) Z, M ,U (d) U, E, R
2. Which of the following set contains odd numbers only ? 
(a) Z, M, U (b) S, K, R (c) R, K, H (d) Z, U, X
3. Which of the following set contains prime numbers only ?
(a) Z, S, U (b) U, R, H (c) E, H, X (d) E, U, M
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4 comments

  1. Salik

    there is no clue…
    split into 3 part 3*1 matrix.
    then hit and trial for S={0-9}
    case 1:
    S=0,then U=even,M=5;
    case 2:
    s=1, U,M={3,7 or 7,3}
    s=2, U,M={3,4},{4,3}………..{8,9},{9,8}
    it will satisfy at S=2, and U=3,M=4……
    7 4 3
    6 7 4
    ……………………….
    2 9 7 2
    5 2 0 1
    4 4 5 8
    ………………………
    5 0 0 7 8 2

  2. Ashish Shende

    In this problem
    one clue

    m+1=x
    if m=4
    then
    m+1=x=5 put the value then observe and find best option

    z*z=x_
    means
    7*7=49
    put z=7
    m=4
    E=6 e*z=mm 6*7=42
    u=3

    7 4 3
    6 7 4
    ……………………….
    2 9 7 2
    5 2 0 1
    4 4 5 8
    ………………………
    5 0 0 7 8 2

  3. shehzad

    actually there is a clue, X+M is generating a carry so possible values of M & X can only be (4,5) or (5,6) or (6,7) as X cannot be greater than 7(guess why..?)
    now for set (5,6) M cannot be 5 as it can be seen in the multiplication which leaves only 2 possible values of M and X
    either M=4 & X=5
    or M=6 & X=7
    now use hit and trial

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