Least & Most( Week 37 Practice)
1. Joe plans to plant trees along the 20-meter long road side in front of his shop. At most how many trees can be planted along the road if a 2-meter distance between every two trees is required? 2. The students in a class were asked to answer two Math questions. 12 of them answered the first question correctly and 10 answered correctly for the second question. 7 of them answered both questions correctly. At least how many students were in the class? 3. Alice has 7 pairs of socks (each pair is unique) in a drawer. How many socks will she need to take out from the drawer in order to make sure to find a pair of socks? 4. A snack costs 66 cents. If you want to pay it with coins, at least how many pennies are there in the coins? 5. There are 5 red balls, 10 green balls and 11 blue balls in a bag. At least how many balls do you need to pick from the bag (without returning the balls back to the bag) in order to make sure that you have balls of all three colors?