Sharon works for 5 hours to earn enough tips to buy an ice cream cake, while Karen works for 4. After how many hours will they be able to buy the cake together?
Correct answer: C
Explanation
Sharon's earnings = 1/5 cake per hour
Karen's earnings = 1/4 cake per hour
Sharon + Karen's earnings= 9/20
They will be able to buy the cake in just over 2 hours
correct option is C
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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.