Question

Raphael is timing how fast he can do a series of 5
math questions, aiming to complete them in less than 20 minutes. He has done 3 questions so far, with each of them taking 3

minutes to complete.

On average, how much time does Raphael have on each remaining question so he can reach his goal?
(1 point)

Answer 1

Answer:

Time left for each question is less than 5.5 minutes

Step-by-step explanation:

Given that:

Raphael is trying to solve 5 math questions in less than 20 minutes.

3 questions have been completed which have taken 3 minutes each.

To find:

How much time is left with Raphael for each question so as to reach his goal.

Solution:

First of all, let us find the time that has been already consumed by Raphael in solving the 3 questions.

3 $\times$ 3 = 9 minutes

Time left = Total Time - Time already consumed

Time left = 20 - 9 = 11 minutes

Number of questions to be solved = Total questions - Questions solved

Number of questions to be solved = 5 - 3 = 2

Average time left for each question = Time left divided by Number of questions to be solved

Average time left for each question = 11 $\div$ 2 = 5.5 minutes

Therefore, time left for each question is less than 5.5 minutes.