Tayzar's answer to Rachael's Primary 4 Maths Singapore question.

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Tayzar
Tayzar's answer
17 answers (A Helpful Person)
1st
Take note and hope this helps.
Rachael
Rachael
4 years ago
Thank you Tayzar
Tayzar
Tayzar
4 years ago
You are welcome
Boy Mow Chau
Boy Mow Chau
4 years ago
Answer should be 38 white beads instead of 40.

Note that the 1st and last bead are black. There are 19 repeating groups of black+white+white, followed by 1 single black at the end.

19 x 2 = 38 white beads.
Rachael
Rachael
4 years ago
Yeah. My teacher also said that 40 is a wrong answer. Thanks