PSLE Math 2024 Paper 2 Question 12
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(Alan, Barry & Clara Percentage Ratio Question)
PSLE Math 2024 Paper 2 Question 12
Constant Total → Internal Transfer
Alan gave 20% of his stickers to Clara
20% = 1/5 = 12/60 (gave to Clara)
Before
Alan : Barry : Total
3 : 2 : 5
60 : 40 : 100
After
Alan : Barry : Clara : Total
48 : 40 : 12 : 100
48 : 26 : 26 : 100
(a) Ans: 12 : 10 :3
(b) Ans: 7/20
no. of stickers that Barry gave to Clara = 26u - 12u = 14u
Fraction = (no. of stickers Barry gave away) / (original no. of stickers Barry had)
= 14/40
= 7/20