A quant problem that I had in GRE test, need help
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16 Oct 2019, 08:38
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Hi! I encountered the following problem in my GRE test (in late August). I am not sure how to solve it...
There are 150 people in total, 40% people age > 60, 80% people have jobs. How many people have jobs and age>60? Select all possbile numbers.
I cannot remember the numbers that were given, but does anyone know how to calculate the range of the numbers of people have job+ age>60?