MO 3

A clock takes 3 seconds to make 4 chimes. Assuming that the rate of chiming is constant, and the duration of each chime is negligible, how long does the clock take to

make 8 chimes?

• 7 s

• 8 s

• 9 s

• 10 s

• 1,2,3,4,5,6,7,8,9

• 1,2,4,6,9,18,36

• 1,2,3,4,6,9,12,18,36

• 1,2,3,4,5,6,12,18,36

Find the smallest whole number that is divisible by 12 and 30.

• 30

• 40

• 120

• 60

A shop sells sweets where every 3 sweet wrappers can be exchanged for one more sweet. Catherine has enough money to buy only 26 sweets. What is the biggest number of sweets that she can get from the shop?

• 34

• 36

• 38

• 40

5 students, Alex, Barry, Carl, Daniel and Edwin took part in a competition. Each person must play exactly one game against each contestant. At one point during the compeition,

Alex had played 4 games.

Barry had played 3 games.

Carl had played 2 games.

Dylan had played 1 game.

How many games had Edwin played so far?

Four students were arguing over what day of the week it was.

A: Today is not Wednesday.

B: Tomorrow it'll be Friday.

C: Yesterday was Sunday.

D: (Looking at B and C) Wrong! Both of you are wrong.

Only one student told the truth. What day is it "today"?

• Tuesday

• Thursday

• Wednesday

• Saturday

Find the value of a.

Find the value of a.