Duncan took a math quiz last week. There were 55 problems on the quiz and Duncan answered 40% of them correctly. How many problems did Duncan get correct?

Duncan got 22 questions correct

Step-by-step explanation:

Total questions in quiz = 55

Total answered correctly by Duncan = 40% of 55

Total answers he got correct = 40% of 55

= 40/100×55

= 22

Therefore Duncan got 22 questions correct

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I think it would be  4 hours and 2 minutes. Please correct me if I am wrong anyone.