EC Maths Puzzle Challenge

What number do you get when you multiply all of the numbers on a phone’s number pad?

How many days are there in 4 years?

Divide 20 by half and add 30, what do you get?

What is the value of the question mark?

How many squares in the picture?

At the English College the total number of students is 1070.

There are 10 more boys than girls.

How many girls are there at the English College?

Clue: the sum of the digits of boys is 9, and the sum of the digits of girls is 8, both numbers are a multiple of 10.

Your flight to Rome leaves New York City at 5:15pm on Wednesday. The flight time is 7.5 hours. If Rome is 6 hours ahead of New York City, what time are you scheduled to arrive?

Please give your answer in the form 00:00

using 24 hour clock time

Some cubes are arranged as shown in the figure. How many cubes are unseen?

• 8

• 11

• 10

• 12

Harry is 54 years old, and his mother, Anna, is 80.

How many years ago was Anna three times the age of her son Harry?

When building villas in Damac Hills all builders work at the same rate.

If there are 6 builders, it takes 80 days to complete a villa.

How many builders must be employed to build one villa in just 16 days?