The line graph shows the amount of money Japheth spent from January to June.

1. Of the amount Japheth spent in May, $106 was spent on transport and the remaining amount was spent on food. How much did he spend on food in May?
2. In which month did Japheth spend $240 less than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Japheth spent in May = $180

Amount that Japheth spent on food
= 180 - 106
= $74

(b)
To find a decrease in a line graph, look for a decreasing slope. 

The 2 decreasing slopes are from March to April and April to May. Now, find the month when Japheth spent $240 less than the previous month.

Amount that Japheth spent in March = $600
Amount that Japheth spent in April = $360

Amount that Japheth spent in April less than March
= 600 - 360
= $240 (✓)

Amount that Japheth spent in April = $360
Amount that Japheth spent in May = $180

Amount that Japheth spent in May less than April
= 360 - 180
= $180 (x)

The month that Japheth spent $240 more than the previous month = Apr

Answer(s): (a) $74; (b) Apr