Bairesdev Problem Solving Sample Test

A clock was showing the time accurately on Wednesday at 4pm. On the following Saturday, at 2pm, the clock was running late by 35 seconds. On average, how many seconds did the clock skip each 30 minutes?

A recipe for making 18 cookies requires 3/4 cup of sugar. How much sugar would be needed to make two dozen cookies using the same recipe?

Choose which of the following expressions represents the highest value:

The price of a Bluetooth speaker was $120. During the first week of January, its price rose by 20%, and then a week after it rose again by another $24. What is the total percentage increase in price for this speaker?

What fraction of the grid is NOT covered in black.

What is the next number in the series?

13, 9, 14, 8, 15,

What is the next number in the series?

12, 12, 24, 8, 2, 10,

A plumber has 6,000 toilet sinks. He is about to install 20% of all sinks over the next four days. If he plans to divide his work evenly, how many toilet sinks will he install on each of the four days?

A swimming pool with a capacity of 4,200 gallons is 1/4 full of water. How many hours will it take a pipe supplying water at a rate of 10 gallons per minute to finish filling the pool?

What is the next number in the series?

45, 15, 30, 30,10, 20,