The diagrams (not drawn to scale) show a rectangular cardboard P and a square Q. Michael 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 Michael could cut from a rectangular cardboard P?
(a)
Number of squares lengthwise
= 39 ÷ 5
= 7 r 4
Length of RS = 4 cm
(b)
Number of squares breadthwise
= 23 ÷ 5
= 4 r 3
Greatest number of squares
= 7 x 4
= 28
Answer(s): (a) 4 cm; (b) 28