Who is asking: Student
- A pile of books is 96.08cm. If each book is 0.8cm thick. How many books are in th pile?
2. A car travels 9.84km on 0.6 litres of petrol. How far will the car travel on 3.7 litres of petrol?
- If the question had been "I have a pile of 15 books. If each book is 0.8cm thick how high is the pile?" then it would be easy.
15 books times 0.8cm per book equals 12 cm.
That is 15 x 0.8 = 12
For your problem you don't have the number of books. What you have is
?? x 0.8 = 96.08
Thus you can find the unknown number of books by division.
- I would first find how far the car will travel on one litre of petrol. If you divide the number of kilometers by the number of litres you get kilometers per litre, that is the number of kilometers you can travel on one litre. Thus the car can travel 9.84/0.6 = 16.4 kilometers on one litre of petrol. How far will the car travel on 3.7 litres of petrol?
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