Problem of the Month

Problem of the Month

from:

  • Maths Digest magazines

  • Mathematical Teasers, a book by Julio A. Mira

  • Family Maths magazine The Maths Connection

  • Singapore-Asia Pacific Mathematical Olympiad competition.

and a range of other sources.

Problem of the Month (June 2017)

 

Percentages

a. Which is greater 35% of 45 or 45% of 35?

b. Which is greater? An increase of 10% followed by a decrease of 10% or a decrease of 20% followed by an increase of 20%?

c. At a High School, 90% of the students take mathematics, 85% take science and 80% take geography. What percentage, at least, must take all three subjects?

 

Last Month's Solution (April)

 

What number comes next?

7, 9, 16, 25, 41, 66

 

Answer

107

 

View Problem of the Week Archive (2016/2017)

View Problem of the Week Archive (2015)