Tan Bo An's answer to Ho Lee Ling's Primary 5 Maths Whole Numbers question.

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Tan Bo An
Tan Bo An's answer
1 answers (Tutor Details)
1st
For the first 7 days, it would cost 7 x $0.20 = $1.40
Amount owing after 7 days: $3.90 - $1.40 = $2.50
Number of days $2.50 was paid: $2.50 / $0.50 = 5 days
Total number of days overdue = 7 + 5 = 12 days