John took a test with 80 questions. For the first 40 questions, she got 90% right. For the next 40 questions, she gets 95% right. How many total questions does she get right? Think carefully first, then make a decision:
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He gets 40 * .9 = 36 questions right for the first part. For the second part, he gets 40 * .95 = 38 questions right. So he gets a total of 36 + 38 = 74 questions right. So, the answer is 74.
Assistant