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Daily Problem·Sunday, 29 March 2026Back to today

Complementary Probability

11+ · Mathematics · ISEB · M4.3Probability basics

Question

A bag contains red and blue marbles only. If the probability of picking a red marble is 25\frac{2}{5}, what is the probability of not picking a red marble? Explain.

3 marks · take your time before peeking.

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