Thirty students numbered from 1 to 30 stand in a row. The teacher announces, “Will those numbered from 1 to 10 inclusive take one step forward, and those numbers 20 to 30 inclusive take one step backward.” How many students remain in place?

Max throws four darts at the target shown in the

diagram. All four darts hit the target, each scoring a

different number of points. What is the minimum 5

number of points Max has scored?

Which of the polygonal board below cannot be obtained from a rectangular board after one straight cut?

Benches are provided for children watching a movie. Each bench can seat 3 children. What is the minimum number of benches required to seat 25 children?

A large bottle of apple juice costs 6.5 dollars while a small bottle of apple juice costs 2.8 dollars. How many dollars less is the cost of a large bottle compared to the total cost of three small bottles?

A shell may be traded in for two baskets of fruit or three baskets of vegetable. Which of the following may not be obtained by trading in at most two shells?

Lana is a student in Grade 4. Which of the following is the closest approximation to her age?

There are 2 red balls, 6 yellow balls and 10 blue balls in a box. One ball is drawn at random. Which of the following statement is correct?

Whenever the hour hand and the minute hand of a clock coincide, the number of germs in a dish increases by 10. Between 1:30 pm and 6:30 pm on the same day, by how many has the number of germs increased?