Quantitative (Problem Solving) Flashcards
7 cards from real GMAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Quantitative (Problem Solving) flashcards as text
If the area of a circle is 36π, what is its radius?
Answer: 6
πr² = 36π means r² = 36, so r = 6.
A store sells pens at 3 for $2. How much do 12 pens cost?
Answer: $8
12 ÷ 3 = 4 sets at $2 each = $8.
What is the median of 4, 8, 15, 16, 23, 42?
Answer: 15.5
With six values, the median is the average of 15 and 16, which is 15.5.
If 5 workers build a wall in 12 days, how long for 10 workers at the same rate?
Answer: 6 days
Doubling workers halves the time to 6 days.
Simplify: (x³ · x⁴) ÷ x²
Answer: x⁵
Add exponents 3+4=7, then subtract 2 to get x⁵.
A coat costs $120 after a 20% discount. What was the original price?
Answer: $150
120 ÷ 0.80 = 150.
What is the value of |−9| + |5 − 12|?
Answer: 16
|−9| = 9 and |−7| = 7, summing to 16.