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How do you cut a clock into 4 pieces so that the numbers on each section add up to 15?
Wiki User
∙ 14y ago
First piece: 10, 11, 12
Second Piece: 7, 8
Third Piece: 4, 5, 6
Fourth Piece: 1, 2, 3, 9 (the rest)
Obviously, these are not going to be even pieces. Here is the explanation for how this works.
First piece: 10+1+1+1+2 =15
Second piece: 7+8=15
Third piece: 4+5+6=15
Fourth piece: 1+2+3+9=15
Adding up the numbers on the clock all together (1+2+...11+12) is equal to 78. Adding up all the digits on the clock (10=1+0, 11=1+1) is equal to 51. Neither of these numbers is divisible by 15, so the only way to get the desired answer is a combination of the two methods.
Wiki User
∙ 14y ago
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