Oscar used 62 rods to make a total of 16 squares and triangles. An square is made by 4 rods and a triangle is made by 3 rods. How many of each type of shapes did he make?
- Number of squares
- Number of triangles
(a)
Assuming all are triangles,
Number of rods needed for the triangles
= 3 x 16
= 48
Number of extra rods left
= 62 - 48
= 14
Difference in the number of rods between 1 square and 1 triangle
= 4 - 3
= 1
Number of squares
= 14 ÷ 1
= 14
(b)
Number of triangles
= 16 - 14
= 2
Answer(s): (a) 14; (b) 2