PSLEBetty received $80 from her father each month for her allowance. The line graph shows the amount of allowance she spent each month.
- What is the difference between the amounts Betty spent in Aug and in Nov?
- Write down all the months in which Betty spent more than half her allowance. Give the answer in short form. (Eg Jan, Mar)
(a)
Amount that Betty spent in Jul = $24
Amount that Betty spent in Aug = $45
Amount that Betty spent in Sep = $48
Amount that Betty spent in Oct = $24
Amount that Betty spent in Nov = $24
Difference between the amounts Betty spent in Aug and Nov
= 45 - 24
= $21
(b)
Half of Betty's monthly allowance
= 80 ÷ 2
= $40
Months in which Betty spent more than half her allowance: Aug, Sep
Answer(s): (a) $21; (b) Aug, Sep