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primary 5 | Maths | Fractions
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Mike
Mike

primary 5 chevron_right Maths chevron_right Fractions chevron_right Singapore

Pls help. Tq

Date Posted: 6 days ago
Views: 18

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AC Lim
Ac Lim's answer
1591 answers (A Helpful Person)
1st
Hope this help
Mike
Mike
6 days ago
May i know why need times 3?
AC Lim
AC Lim
6 days ago
We need to eliminate either cake or pie, in this case, cake have more u. i.e 6u, so we choose to eliminate the pie. 3u, therefore we able to find cake 1u.

Total
Cake =6u
Pie=3u

Given 1cake and 1pie=80
3 cake + 3 pie = 240 (all time 3)

Total cake and pie = 300
3 cake + 3 cake +3 pie = 300
3 cake + ( 240) = 300 —-> 240 = 3cake +3pie

....
.... 1cake=20
Mike
Mike
6 days ago
Got it. Thank u so much.
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sstrike
Sstrike's answer
67 answers (A Helpful Person)
Ans: 120
Mike
Mike
6 days ago
Thank u