Question bank HKIMO 2019

According to the pattern shown below, what is the number in the blank?

9, 16, 23, 30, 37, 44, __

According to the pattern shown below, what is the English alphabet in the space provided?

Z, C, Y, E, X, G, W, __, V

30 children form a line. There are 11 children in the front of Hilton. How many child(ren) is / are behind him?

11 years ago, John was 5 years old. Ben is 9 years elder than John. How old is Ben now?

According to the pattern shown below, how many ∗ is / are there in the 6th group?

Find the value of 11 + 27 + 24 + 13 + 29 + 36.

Find the value of 19 − 36 + 47 − 21.

Find the value of 7 + 9 − 6 + 7 + 9 − 6 + 7 + 9 − 6 + 7 + 9 − 6.

What is the number that should be filled in the blank if the equation below is correct?

18 − ____ = 7

If A, B represents different 1-digit numbers, what is the value of B if the equation is correct?

By observing the numbers, which odd number is the greatest?

78, 63, 92, 86, 71, 62, 76

The numbers below follow the arithmetic sequence, what is the 8th number?

64, 62, 60, 58, 56, …

A box of eggs has 12 eggs. Mum asks Mary to buy 30 eggs. Her neighbor asks her to buy 22 eggs. At least how many boxes of eggs does Mary need to buy?

Lucy has 77 coins and Oliver has 15 coins. The total number of coins of Alice, Lucy and Oliver is an odd number. Determine the number of Alice’s coins is odd or even.

Determine the result of 1 + 3 + 4 + 6 + 7 + 9 + 10 + 12 + 13 + 15 + 16 + 18 + 19 is odd or even.

It is known that figure 1 is formed by 7 cubes. How many cube(s) is / are there in figure 2 if figure 2 is formed by identical solids as figure 1?

How many square(s) is / are there in the figure below?

How many line segment(s) is / are there in the figure below?

How many interior angle(s) is / are there in the polygon below?

According to the pattern shown below, what is the figure in the space provided?