AC Lim's answer to __cherrycola__.'s Primary 5 Maths Rate & Ratio Singapore question.
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$72—> 8 hours
$9 —-> 1 hour (72/8=9)
$540 = 540/9 = 60 hours.
Hope this helps
$9 —-> 1 hour (72/8=9)
$540 = 540/9 = 60 hours.
Hope this helps
Date Posted:
5 years ago
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