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

1. Of the amount Japheth spent in April, $117 was spent on food and the remaining amount was spent on clothes. How much did he spend on clothes in April?
2. In which month did Japheth spend $180 less than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Japheth spent in April = $300

Amount that Japheth spent on clothes
= 300 - 117
= $183

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

The 2 decreasing slopes are from January to February and April to May. Now, find the month when Japheth spent $180 less than the previous month.

Amount that Japheth spent in January = $240
Amount that Japheth spent in February = $60

Amount that Japheth spent in February less than January
= 240 - 60
= $180 (✓)

Amount that Japheth spent in April = $300
Amount that Japheth spent in May = $160

Amount that Japheth spent in May less than April
= 300 - 160
= $140 (x)

The month that Japheth spent $180 more than the previous month = Feb

Answer(s): (a) $183; (b) Feb