Lau Guan Yih's answer to Emily's Primary 6 Maths Measurement Singapore question.

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Lau Guan Yih
Lau Guan Yih's answer
59 answers (Tutor Details)
1st
Looking at the straight lines that cut the circle in half, we can see that gold fish is 40%. (50%-10%)

If gold fish is 5 times more than angelfish,
Angelfish = 40% / 5 = 8%

If 10% -> swordfish is 4
50% -> goldfish is 4 x 5 = 20