In a Math test there were 60 problems which were to be done in 1 hour. A student completes 30 problems in 20 minutes how many seconds does he have as average for completing each of the remaining problems.
Correct answer C. 80
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Correct answer C. 53.33
In a class there are 27 students. If there are 7 more girls than boys in the class how many students are girls?
Correct answer B. 17
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Correct answer C. $20
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Correct answer A. y+z
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