Think Mathematics 3A is known for bridging algebra and geometry through realistic, multi-step problems. Here’s a classic style from its chapters on Linear Graphs and Simultaneous Equations :
A stack of 6 plastic cups is 21 cm tall. A stack of 12 cups is 27 cm tall. Assuming each cup has the same height and fits uniformly inside the one below, find: (a) the height of one cup (b) the height of the rim (lip) of each cup (c) the height of a stack of 20 cups. think mathematics 3a pdf