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ÎÊÌ⣺ 1£º Oyla the ant starts on one of the vertices of a cube whose edges have length 1. She wants to walk along every edge of the cube and return to her starting point, making the length of her journey as short as possible. what is the length of her journey? A.12 B.14 C.15 D.16 E.20 2. Ten different numbers are written down. Any number that is equal to the product of the other nine number is then underlined. How many numbers can be underlined at most? A.1 B.2 C.3 D.9 E.10 3. Several point are marked on a line, and all possible line segments are constructed between pairs of these points. One of the points lies on 80 of these segments; another point lies on 90 segments. How many points were marked on the line? A.20 B.22 C.80 D.90 E. impossible to determine ![]() ![]() ![]() |
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