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## Question

secondary 4 | A Maths

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Just need part 2

Probability = 18/35 x 15/37 = 270/1295

Case 2 : teacher picks a girl from Class A.

Probability = 17/35 x 14/37 = 238/1295

Required probability

= 270/1295 + 238/1295

= 508/1295

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