Dawn's answer to anna's Primary 5 Maths Whole Numbers Singapore question.

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Dawn
Dawn's answer
21 answers (Tutor Details)
1st
6pm to 9.30pm is considered as $3.50 per entry.

Hence, before 6pm, he alr needs to pay $12.50 - $3.50 = $9

1st hour is $3, subsequent half an hour or part thereof is $1.50.
Number of half an hours he paid for = ($9 - $3) / $1.50 = $6 / $1.50 = 4
Total hours for $9 = 4 x 0.5 + 1 = 3

Earliest time he started parking is 3pm.
Dawn
Dawn
5 years ago
*3pm written as 1500*
anna
Anna
5 years ago
Good!!