PSLE Usha had a rectangular piece of paper, 60 cm by 31.4 cm. She cut out as many squares as possible from the paper. The side of each square was 4 cm.
- How many squares did Usha cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 31.4 ÷ 4
= 7 r 3.4
Number of squares that can be cut out lengthwise
= 60 ÷ 4
= 15 r 0
Total number of squares
= 15 x 7
= 105
(b)
Remaining breadth of the paper left = 3.4 cm
Area of the paper left
= 60 x 3.4
= 204 cm
2 Answer(s): (a) 105; (b) 204 cm
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