Janice bikes at 10 miles per hour, while Jennie bikes at 20. How long until they have collectively biked 1 mile?
Correct answer: B
Explanation
Janice's speed = 1/6 miles per minute
Jennie's speed = 1/3 miles per minute
Janice + Jennie's speed= (1/6 + 1/3) = 1/2 miles per minute
Both together will finish the mile in 2 minutes
correct option is B
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Source: Algebra word problems from the AQuA-RAT dataset (Ling et al., 2017), published by Google DeepMind under the Apache License 2.0.
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AQuA-RAT items are crowdsourced algebra problems, not ACT questions. They carry five answer choices in the pre-2025 ACT Mathematics style and no ACT reporting category. Useful for drilling Preparing for Higher Math content; not a substitute for a real form.