AC Lim's answer to Ryan's Primary 6 Maths Percentage Singapore question.
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Ideally, Kim 1st book $10 and 2nd book = $8 in order to enjoy the discount.
1st book = 10% discount
100%= $10
10% = $1
90%=$9
2nd book = 20%
100%=$8
10%=$0.80
80%=$6.40
Kim pay $9+$6.40= $15.40
1st book = 10% discount
100%= $10
10% = $1
90%=$9
2nd book = 20%
100%=$8
10%=$0.80
80%=$6.40
Kim pay $9+$6.40= $15.40
Date Posted:
4 years ago
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