exam Maths Puzzle Numerical Ability

The probability that an individual is left-handed is 0.11. In class of 40 students, what is the probability of findind five left-handers?

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exam Other Question

please show me the answer and the solution for this equation:

a/6a-9b - b/4a-6b
Derive: K

1.M&~M
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I need help to complete the above derivation. Thanks.