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secondary 4 | E Maths
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secondary 4 chevron_right E Maths chevron_right Singapore

Need help. Thanks!

Date Posted: 8 months ago
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Erfana Beevee Binte Hassan Shariff
Erfana Beevee Binte Hassan Shariff's answer
275 answers (Tutor Details)
1st
To score 30 points, each throw has to hit the circle with radius 3cm. The probability of hitting the circle with radius 3cm= area of circle with radius 3cm/ area of whole square.
This is for 1 throw. For 3 throws, raise it to power 3.
To score leas than 4 points in 2 throws, each throw must fall outside the big circle. Probability = area of square - area of big circle/ area of square
This is for 1 throw. For 2 throws, raise to power 2.
Hope this helps.