Question bank AMO

There is an old jar packed full of textas on the table. There are twice as many red textas as blue and one more yellow than red. Eight textas are either yellow or green. There are three green textas. How many blue textas are in the jar?

At the "Brain Drain" championships teams earned points for answering trivia questions. Their final scores are shown below. Use the graph to answer the questions.



a) What is the combined points scored by Alpha and Beta?

b) What is the difference in the number of points Beta scored and the number Alpha scored?

c) How many more points did team Kappa score than team Alpha?

Find the area of the cross figure below:

Observe the pattern. What should be the value of A?

On a particular morning the temperature went up 1 degree Celcius every 2 hours. If the temperature was 23 degrees Celcius at 5 A.M., at what time it 57 degrees Celcius?

Marcus is half as old as Kelly, who is three times as old as Tammy. The sum of their ages is 55. How old is Marcus?

Suppose today is Wednesday. In all, how many Saturdays are there in the next 40 days?

Jerry tells the truth on Mondays, Thursdays, and Saturdays, but lies on all the other days of the week. One day he said: “I will tell the truth tomorrow.” On which day of the week has he make this statement?

Three friends have marbles. Mark and Frank have 42 marbles, Frank and Kenny have 45 marbles. If Frank has 4 more marbles than Mark, how many marbles do Mark and Kenny have together?

Find the perimeter of the E shape figure.

The wedding cake is 45 ounces and the icing on the cake weighs 12 ounces. The tray the cake is on weighs 60 ounces. What is the total weight of the cake and tray?

A. 105

B. 117

C. 72

D. 57

E. None of the above

There are 100 third-graders at SMEC School. 44 on them are girls. On Friday, 5 third-grade girls and 7 third-grade boys were absent. How many third-grade boys were at SMEC School on Friday?

Which of the following options shows the correct number of minutes in a 1-day period?

How many sticks at length of 9 metres are placed end to end to make 81 metres?

Flies are known to breed at an amazing rate. One day there are two flies; on the next day, five; on the third day, nine; and on the fourth day, fourteen. How many flies will there be on the tenth day?

Alice started her homework at 7:20 p.m. She finished it at 8:05 p.m. How long did she take to do her homework?

Assuming the pattern below continues, how many squares will be in Figure 5?

The sum of several whole numbers equals 14. What is the greatest product of these whole numbers?

Some people are standing equally spaced around a circle, and they are numbered starting from the number 1 in a clockwise direction. If the person numbered 2 is directly opposite the person numbered 8, how many people are there?

15 identical rectangles of perimeter 20cm each are arranged as shown below. Find the perimeter of the figure.