EugeneC's answer to Lee's Secondary 1 Maths Singapore question.
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2a) 80 cents = $0.80
(0.80/4) x 100% = 20%
2b) 50cm = 0.5m
(0.5/1.4) x 100% ≈ 35.7%
2c) 250ml = 0.25L
(0.25/1.1) x 100% ≈ 22.7%
2d) 3mm = 0.3cm
(0.3/1.5) x 100% = 20%
3) (6/20) x 100% = 30%
(0.80/4) x 100% = 20%
2b) 50cm = 0.5m
(0.5/1.4) x 100% ≈ 35.7%
2c) 250ml = 0.25L
(0.25/1.1) x 100% ≈ 22.7%
2d) 3mm = 0.3cm
(0.3/1.5) x 100% = 20%
3) (6/20) x 100% = 30%
Date Posted:
3 years ago
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