Dj's answer to Dime's Primary 6 Maths Fractions Singapore question.
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Let u be the total amount of money at first.
Shoes —-> (1/7)u
Remainder = (6/7)u => Comics —> (1/6)(6/7)u = (1/7)u
So left = u – (2/7)u = (5/7)u
(5/7)u = 450
u = 450 x (7/5) = 90 x 7 = 630
Amount of money Ian has at first is $630
Shoes —-> (1/7)u
Remainder = (6/7)u => Comics —> (1/6)(6/7)u = (1/7)u
So left = u – (2/7)u = (5/7)u
(5/7)u = 450
u = 450 x (7/5) = 90 x 7 = 630
Amount of money Ian has at first is $630
Date Posted:
1 year ago
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