প্রশ্ন ও উত্তর
The 20"-diameter wheels of a car rotates at rate of 24 revolutions per minute, while the 30"-diameter wheels of another car travels at a rate of 18 revolutions per minute. What is the ratio of the speed of the second car to that of the first?
গণিত Ratio, Proportion and Partnership 07 Oct, 2020
প্রশ্ন The 20"-diameter wheels of a car rotates at rate of 24 revolutions per minute, while the 30"-diameter wheels of another car travels at a rate of 18 revolutions per minute. What is the ratio of the speed of the second car to that of the first?
সঠিক উত্তর
9 : 8
মন্তব্য
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