PI - Cognitive Assessment Numerical Word Problems Questions and Answers

Question 1

A bakery produces 150 loaves of bread per day. If the bakery sells 70% of its loaves in the morning and 50% of the remaining loaves in the afternoon, how many loaves are left at the end of the day?

Accepted Answer

23

Answer

First, calculate the number of loaves sold in the morning: 150 * 0.70 = 105 loaves. Then, find the remaining loaves: 150 - 105 = 45 loaves. Next, calculate the number of loaves sold in the afternoon: 45 * 0.50 = 22.5. Since you can't sell half a loaf, this implies a slight ambiguity common in such problems, but rounding to the nearest whole number or considering the context usually leads to 22 or 23. However, if we calculate what's left: 45 - 22.5 = 22.5. The closest whole number answer is 23, assuming they can't sell a partial loaf and one is left over from the half. A more precise interpretation is that 22 loaves were sold in the afternoon, leaving 23. Let's re-evaluate: 45 remaining * 50% = 22.5 loaves sold. Loaves left = 45 - 22.5 = 22.5. Often in these tests, you work with the numbers provided. The number left is 45 * 0.50 = 22.5. Let's re-read. '50% of the remaining'. 45 * 0.5 = 22.5. Remaining is 45 - 22.5 = 22.5. The question asks how many loaves are left. If 22.5 are sold, 22.5 are left. Let's assume the question implies whole loaves. If 22 loaves are sold in the afternoon, 23 are left. 45 - 22 = 23.

Question 2

A car travels at a speed of 60 miles per hour. A truck leaves the same point 30 minutes later, traveling at 70 miles per hour. How long will it take for the truck to catch up to the car?

Accepted Answer

3 hours

Answer

In the first 30 minutes (0.5 hours), the car travels 60 mph * 0.5 hours = 30 miles. The truck is faster by 70 mph - 60 mph = 10 mph. To catch up the 30-mile head start, the truck needs 30 miles / 10 mph = 3 hours.

Question 3

A store buys a shirt for $15 and sells it for $24. What is the percentage profit on the cost price?

Accepted Answer

60%

Answer

The profit is the selling price minus the cost price: $24 - $15 = $9. To find the percentage profit, divide the profit by the original cost price and multiply by 100: ($9 / $15) * 100 = 0.6 * 100 = 60%.

Question 4

Three pumps working together can fill a tank in 4 hours. If two of the pumps work at the same rate and the third pump works at half that rate, how long would it take for the fastest pump to fill the tank alone?

Accepted Answer

10 hours

Answer

Let the rate of the two faster pumps be 'R' gallons per hour each. The rate of the third pump is R/2. Their combined rate is R + R + R/2 = 2.5R. The total work to fill the tank is Rate * Time, so Work = 2.5R * 4 hours = 10R. To find the time for one of the fastest pumps (rate R) to fill the tank alone, Time = Work / Rate = 10R / R = 10 hours.

Question 5

A company has 400 employees. 65% of the employees are male, and 40% of the male employees are under 30. How many male employees are under 30?

Accepted Answer

104

Answer

First, find the total number of male employees: 400 * 0.65 = 260. Then, calculate the number of male employees under 30: 260 * 0.40 = 104.

PI - Cognitive Assessment Practice Test

PI - Cognitive Assessment Practice Test

PI - Cognitive Assessment Numerical Word Problems Questions and Answers