1490 : x = 596 : 0,4, x =
12,4 : x = 5 : 5,15, x =
The thickness of the 300-page book is 2.4 cm. How thick is a 650-page book on the same paper?
+37158 1490/x = 596/.4
1490 * .4/596 = x
2.4 cm / 300 p * 650 p = .......... cm thick (see how the p cancels out and you are left with ' cm ' ?)
