PSLE Dana had a rectangular piece of paper, 63.1 cm by 36 cm. She cut out as many squares as possible from the paper. The side of each square was 6 cm.
- How many squares did Dana cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 63.1 ÷ 6
= 10 r 3.1
Number of squares that can be cut out breadthwise
= 36 ÷ 6
= 6 r 0
Total number of squares
= 6 x 10
= 60
(b)
Remaining length of the paper left = 3.1 cm
Area of the paper left
= 3.1 x 36
= 111.6 cm
2 Answer(s): (a) 60; (b) 111.6 cm
2