Food and Nutrition
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The following table gives the recommended amount of kilojoules you should eat every day.
\[\begin{array}{ | c | c | c | }\hline \text{Age} & \text{Men kJ per day} & \text{Women kJ per day} \\ \hline \text{18 - 35} & 12500 & 9000 \\
\hline \text{36 - 70} & 10000 & 8000 \\
\hline \end{array}\]
a) How many kilojoules does George need each day if he is 19 years old?
b) Jane uses about 900kJ every half hour when she goes hiking. Jane went for a 3 hour hike today and is 40 years old. How many kilojoules does she need today?
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