a. Write triangular numbers up to 100.
b. Write square numbers up to 100.
c. State the relation that exists between the square numbers and the
triangular numbers.
Problem 3.2 The Age
A's age equals B's age minus the cube root of C's
age. B's age equals C's age minus the square root of A's
age, plus 24 years. C's age equals the square root of A's
age plus the cube root of B's age. Find, by trial and error,
the age of:
a. A in years
b. B in years
c. C in years
Problem 3.3 Poppy
Poppy's dad paid her 50 cents for every problem she got right but
penalised her 30 cents for any problem she got wrong. After
attempting 40 problems Poppy received only 80 cents. How many answers did
she get right?
Problem 3.4 Triangular Pyramid
1. Apples are arranged so that they form the shape of an
equilateral triangle. State the number of apples in the following
diagrams. |
