Q1.

A triathlete competes in a triathlon in which the swimming, biking, and running segments are all of the same length. The triathlete swims at a rate of 3 kilometers per hour, bikes at a rate of 20 kilometers per hour, and runs at a rate of 10 kilometers per hour. Which of the following is closest to the triathlete's average speed, in kilometers per hour, for the entire race?

Q2.

A square is drawn inside a rectangle. The ratio of the width of the rectangle to a side of the square is . The ratio of the rectangle's length to its width is . What percent of the rectangle's area is inside the square?

Q3.

A bakery owner turns on his doughnut machine at . At  the machine has completed one third of the day's job. At what time will the doughnut machine complete the job?

Note : Example of answer  : 12:00 PM,  ( input your answer like this) 

Q4.

What is the volume of a cube whose surface area is twice that of a cube with volume 1?