AC Lim's answer to Eekzcat's Primary 4 Maths Singapore question.
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Factor for
60 = 1,2,3,4,5,6,10,12,15,20,30,60
90 = 1,2,3,5,6,9,10,15,18,30,45,90
120 = 1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120
a) highest common factor = 30
b) total items = 60+90+120 =270
Total number of guests = 30
Each person take = 270÷ 30 = 9.
Hope this helps.
60 = 1,2,3,4,5,6,10,12,15,20,30,60
90 = 1,2,3,5,6,9,10,15,18,30,45,90
120 = 1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120
a) highest common factor = 30
b) total items = 60+90+120 =270
Total number of guests = 30
Each person take = 270÷ 30 = 9.
Hope this helps.
Date Posted:
4 years ago
Thanks!
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