The number is less than 30. The sum of the digits is 10. The number is an even number. What number am I?
1 answer:
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At first let us choose the 5 points
at x = 0, y = 0
The first point is (0, 0)
We will choose a = 1/2
The points are
(-2, -4)
(-1, -1/2)
(0, 0)
(1, 1/2)
(2, 4)
Check the picture below.
