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Primary 4 | Maths
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Lenci
Lenci

Primary 4 chevron_right Maths chevron_right Singapore

Can someone help me explain the solution? Thank you so much...

Date Posted: 1 month ago
Views: 26

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AC Lim
Ac Lim's answer
1838 answers (A Helpful Person)
1st
Hope this help
Lenci
Lenci
1 month ago
Thanks AC. Can you explain more why the 1U is 2 x $50?
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AC Lim
Ac Lim's answer
1838 answers (A Helpful Person)
At the end, James is 3u, so 50+50 is 1u

Hope this clear to you.
Lenci
Lenci
1 month ago
Why is it + another 50? I mean it only mention that Alex spent $50 but not Janes has 2 x $50...
AC Lim
AC Lim
1 month ago
At 1st James have 2unit. Each unit cut away 50.
So James at the end are
1u + 50 and 1u + 50
Total = 2u + 100
2u + 100 = 3u as James have thrice and Alex 1u.
2u + 100 = 3u
100 = 3u - 2u
100 = 1u

Hope this help