Free SAT Ratios & Rates Mock

Master Ratios & Rates: Stop Cross-Multiplication Errors Once and For All! Take a quick SAT practice test on Ratios & Rates to level up your skills, tackle tougher problems, and discover your strengths.

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Ratios and Rates

A fruit juice has 30% sugar while another juice has 18% sugar content. If Maria requires 22% sugar, and she mixes x liters and y liters respectively of the two juices, what is the equation using x and y which corresponds to the above?

A 3x + 18y = 22 B 0.3x + 0.18y = 0.22 C 0.3x + 0.18y = 0.22(x + y) D 0.3x + 0.18y = x + y

The cost of 75 chocolates and 45 toffees is $12. At the same rate, what would be the price of 100 chocolates and 60 toffees?

A $8 B $12 C $16 D $24

In a coastal town, the ratio of tourists to local residents during the peak summer months is approximately 1.5:2.4. If there are 12,000 local residents, approximately how many tourists visit the town?

A 750 B 7,500 C 19,200 D 26,700

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How to solve questions from Ratios & Rates?

Cross-Multiplication Method

Use cross-multiplication to solve proportion equations when given two equal ratios.

Unit Conversion Strategy

Set up conversion factors as fractions to cancel unwanted units systematically.

Rate Formula Application

Apply distance = rate × time and similar rate formulas to solve real-world scenarios.

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Why Ratios & Rates matter for SAT?

EdisonOS conducted a detailed Bluebook analysis to help tutors design SAT tests mirroring official Bluebook test challenges. Findings show PSDA occupies the smallest portion of SAT Math, averaging 12 questions. Ratios & Rates shares 1-2 questions making this skill important in PSDA domain study plan.

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Avoid These Common Mistakes In Ratios & Rates!

01 Ratio Setup Error

Students frequently set up ratios incorrectly by mixing up the order of corresponding terms

02 Unit Confusion Issues

Students often forget to convert units or mix different units within the same calculation

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03 Cross-Multiplication Mistakes

Students make algebraic errors when cross-multiplying, especially with complex fractions or decimals

04 Rate Formula Misapplication

Students confuse which variable to solve for or incorrectly substitute values into rate formulas

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