Question

what fraction of the 400 people drink at least 3 cups of tea in simplest form

Answer 1

Answer:

Basically you're gonna need to multiply the two fractions together which will give you the chance of both of these things occurring and 20% is 2/10 and 7/10 is given so when you multiply them you get 14/100 because for multiplying fractions you just need to multiply the numerators (top number) together and the denominator (bottom numbers) together, you can then simplify 14/100 as both the numerator and the denominator are divisible by 2 giving you 7/50. We can no longer divide anymore as there is no common multiple, we know this because 7 is a prime. So your final answer will be 7/50, I hope this helps.