Question

Energy content of different foods are as follows:
$\begin{array}{cc}\text{Food}& \text{Enery content perk kg}\\ \text{Wheat}& \text{3.2 J}\\ \text{Rice}& \text{5.3 J}\\ \text{Potatoes (Cooked)}& \text{3.7 J}\\ \text{Milk}& \text{3.0 J}\end{array}$

Which food provided the least energy and which provides the maximum?
Express the least energy as a fraction of the maximum energy.

Answer 1

In the given table, we see that the minimum value is 3.0 J and the maximum value is 5.3 J.
$\therefore$ Milk provides the least energy(3.0 J) while rice provides the maximum energy(5.3 J).
$\therefore$ Required fraction = $\frac{Leastenergy}{Maximumenergy}=\frac{3.0}{5.3}=\frac{3.0\times 10}{5.3\times 10}=\frac{30}{53}$

(multiplying and dividing the fraction by 10)