A square is formed when a rectangle is cut into three equal parts and then joined together as shown below.

Find the perimeter of the rectangle if the perimeter of the square is 72 cm.

A square is cut into five identical rectangle. Each rectangle has a perimeter of 72 cm. What is the perimeter of the square ?

In the figure below, the perimeter of Figure A is 24 cm. Find the perimeter of Figure B.

What is the perimeter of the figure below ?

The figure below is made of nine identical squares and has a perimeter of 80 cm. Find the length of the side of each square.

A square, which has a perimeter of 36 cm, is cut into four identical small squares. What is the total perimeter of all the small squares ?

A class has twice as many girls as boys. The average weight of the girls is 26 kg. The average weight of the boys is 32 kg. What is the average weight of the students in the class ?

24 different 4-digit numbers can be formed using the digits 2, 3, 4, 7.  What is the average of the 24 numbers ?

A circular track measures 400 m. Amy runs the first round at the speed of 100m per minute. She then runs the second round at the speed of 80 m per minute. What is the average speed for the two rounds ?

Michael was sick on the day of the final examination for mathematics. The average score of the rest of the students in the class was 94 marks. Michael scored 65 marks for the make-up examination. The class average then became 93. How many students were there in the class ?

Aureila’s average score for her Mathematics test was 90 at first. She scored 100 for the final test. Her average score for the final test. Her average score for the tests became 92. How many tests had she sat for altogether ?

Jonathan scored 96 for English and 88 for science. What would be his score for mathematics if the average score for the three subjects was 93 ?

The Mathematic Olympiad Club in the school has 108  members. What are the average class sizes if the members are divided into 3 classes and 6 classes respectively ?

Rita scored an average of 90 marks in three tests. She then took another test and the average score of all the four tests became 92. How many marks did she score in the fourth test ?

A, B and C are three different numbers. The average of A, B and C is 40. When A is changed to 50, the average becomes 50. What is the original value of A ?