Ratios, rates, and percent
Solve problems involving ratios, rates, and percents, including mental-math strategies for common percents. Unlimited questions, five difficulty levels, and a full worked solution every time, included free with weekly lessons.
Try one
Find the missing number: 4 : 24 = 2 : ?
Answer: 12
See one solved, step by step
A car travels at a constant 96 km/h. How far does it travel in 4 hours?
📘 Worked solution
196 · 4 = 384Multiply the rate (speed per hour) by the number of hours.
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