The diagrams (not drawn to scale) show a rectangular cardboard P and a square Q. Harry cut as many squares Q as he could from rectangular cardboard P. The remaining part of the rectangular cardboard P is shown in Figure 1.
- What is the length of RS as shown in Figure 1?
- What is the greatest number of squares Q that Harry could cut from a rectangular cardboard P?
(a)
Number of squares lengthwise
= 20 ÷ 3
= 6 r 2
Length of RS = 2 cm
(b)
Number of squares breadthwise
= 13 ÷ 3
= 4 r 1
Greatest number of squares
= 6 x 4
= 24
Answer(s): (a) 2 cm; (b) 24