Cutting & Connecting( Week 49 Evaluation) 1. 4 yellow flowers are planted along a straight road, and a red flower is planted between every two adjacent yellow flowers. How many red flowers are there? 2. A pipe connector is used to connect two pipes. How many connectors are needed to connect 4 pipes to form a longer pipe? 3. 10 people are holding hands each other to make a human circle. How many hands are being held each other? 4. 6 red flowers are planted evenly along the border of a circular garden, and then a yellow flower is planted between every two adjacent red flowers. How many yellow flowers are there? 5. How many cuts are needed to cut a long log into 3 shorter pieces? 6. How many cuts are needed to cut a circular metal wire into 2 equal pieces? 7. How many knots are needed to make in order to connect 8 line sections into a longer line? 8. How many knots are needed to make in order to connect 7 pieces of rope into a circular rope? 9. A 12-hour chime clock strikes 1 chime at 1 o'clock, 2 chimes at 2 o'clock, 3 chimes at 3 o'clock,..., and 12 chimes at 12 o'clock. If the interval between two chimes is 2 seconds and each chiming itself does not take any time. How many seconds will it last for the chimes at 3 o'clock? 10. There are 8 steps from 1st floor to 2nd floor. John's home is at 3rd floor. How many steps will it take for him to get home from 1st floor? (Assume that the number of the steps between every adjacent floor is same.) |