Mathematical Problem Solving & Number Operations Flashcards
7 cards from real BSEP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Mathematical Problem Solving & Number Operations flashcards as text
An employee's salary increased from $42,000 to $46,200. What percentage raise did they receive?
Answer: 10%
(46200 − 42000) / 42000 × 100 = 4200/42000 × 100 = 10%.
What is the value of √144 + √25?
Answer: 17
√144 = 12 and √25 = 5; 12 + 5 = 17.
A class of 30 students has a test average of 78. If 5 more students join and their average is 82, what is the new overall average?
Answer: 78.6
(30×78 + 5×82) / 35 = (2340 + 410) / 35 = 2750 / 35 ≈ 78.6.
Which of the following is a rational number?
Answer: 0.333...
0.333... = 1/3, which can be expressed as a fraction of two integers.
A pipe fills a tank in 6 hours. A second pipe fills it in 4 hours. Working together, how long will they take to fill the tank?
Answer: 2.4 hours
Combined rate = 1/6 + 1/4 = 2/12 + 3/12 = 5/12 per hour; time = 12/5 = 2.4 hours.
Evaluate: −8 + (−3) × 4 ÷ (−6)
Answer: −6
Following order of operations: (−3) × 4 = −12; −12 ÷ (−6) = 2; −8 + 2 = −6.
A map uses a scale of 1 inch = 25 miles. Two cities are 3.6 inches apart on the map. What is the actual distance?
Answer: 90 miles
3.6 × 25 = 90 miles.