I absolutely have no idea how to solve this question 24 in level 2.
This is the question:
134 = 2
222 = 4
101 = 8
333 = 1
712 = ??
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Sign up to join this communityI absolutely have no idea how to solve this question 24 in level 2.
This is the question:
134 = 2
222 = 4
101 = 8
333 = 1
712 = ??
If you add up all four number in each example equation, you get 10:
1+3+4+2=10
2+2+2+4=10
1+0+1+8=10
3+3+3+1=10
So for the last one it would be:
7+1+2+X=10
7+1+2 is already 10, so X is 0.
Its 0. The right hand side is such a number that when added with the single digit sum(or mod 10 sum of the digits) of the left number is 1.