book Maths Puzzle Numerical Ability

From a group of 6 men and 4 women, a committee of 3 is to be selected at random. Find P(at least 2 women).

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book Other Question

Suppose W varies directly as x and y and inversely as Z, and W=48 when X=2, Y=8 and Z=12. Find W when X=12, Y=6 and Z=24. What is the answer to 5t+8=88