Maths Tuition Singapore – Probability

Maths Tuition Singapore – Probability

 

ABCD is a square dartboard. P, Q, R and S are the midpoints of AB, BC, CD and DA respectively. W, X, Y and Z are midpoints of PQ, QR, RS and SP respectively.

The score for a dart landing on each region of the dartboard is shown below.

Region

Score

WXYZ

3

PZW or RYX

2

SZY or QWX

1

Other regions

0

(i) A dart is thrown once. What is the probability of scoring 3 points?                                    

(ii) Two darts are thrown one after another. What is the probability of scoring 3 points?

 

Answer : (i) 1/4 , (ii) 9/32

 

Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Additional or Elementary Maths Tuition

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