Phoebe Chin's answer to IMAN's Primary 5 Maths Percentage Singapore question.
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She spent 20%, or (1/5) on computer, so she is left with
100% - 20% = 80%
80% in fraction is 4/5
Fraction of of money of price of watch is
4/5 x 5/8 = 1/2
Fraction of money of difference between price of watch and computer is
1/2 - 1/5 = 3/10
3/10 of money = $1050
Fraction of money she saves is
4/5 x 3/8 = 3/10
3/10 of money = $1050
100% - 20% = 80%
80% in fraction is 4/5
Fraction of of money of price of watch is
4/5 x 5/8 = 1/2
Fraction of money of difference between price of watch and computer is
1/2 - 1/5 = 3/10
3/10 of money = $1050
Fraction of money she saves is
4/5 x 3/8 = 3/10
3/10 of money = $1050
Date Posted:
1 year ago
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