book Maths Puzzle Numerical Ability

Tickets are numbered 1 to 50 and placed in a box. Three tickets are drawn at random without replacement. What is the probability that their numbers are all greater than 25?

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Hi Tutors:
I am on the last problem of my homework and I need help. Please help me find the domain and range of this problem. x^2+2x/|10x-20| I have another piecewise defined function to graph:
f(x) = {x^2 if |x| <=1}
{1 if |x| >1}

If |x| being less than 1 I should get all positive values on the graph, right?

Thank you very much!