Question

Tanya have several different ways she likes to walk home. One route takes 20 minutes, two of the routes take 30 minutes, and two take 40 minutes. Tanya randomly chooses a route to walk home. What is the probability, to the nearest percent, that it will take her 30 minutes to walk home?

A.) 20%
B.) 33%
C.) 40%
D.) 67%

Please explain answer for me :)

Answer 1

40%

Explanation:

Tanya has a a choice of 5 different routes (1-20 mins, 2-30 mins, 2-40 mins).

How many routes can she take that will take her 30-mins to get home?

The answer is 2.

What's the probability she will take 2 of the 5 routes to get home?

The probability is 2/5 so 40%.

The rounding instruction was there to mislead you in this case :-)