The line graph shows the amount of money Ahmad spent from July to December.
- Of the amount Ahmad spent in November, $112 was spent on food and the remaining amount was spent on transport. How much did he spend on transport in November?
- In which month did Ahmad spend $300 less than the previous month? Give your answer in this format. (Eg Jan)
(a)
Amount that Ahmad spent in November = $400
Amount that Ahmad spent on transport
= 400 - 112
= $288
(b)
To find a decrease in a line graph, look for a decreasing slope.
The 2 decreasing slopes are from September to October and October to November. Now, find the month when Ahmad spent $300 less than the previous month.
Amount that Ahmad spent in September = $800
Amount that Ahmad spent in October = $500
Amount that Ahmad spent in October less than September
= 800 - 500
=
$300 (✓)
Amount that Ahmad spent in October = $500
Amount that Ahmad spent in November = $400
Amount that Ahmad spent in November less than October
= 500 - 400
= $100 (x)
The month that Ahmad spent $300 more than the previous month = Oct
Answer(s): (a) $288; (b) Oct