The profit 2

Jo buys 120 bunches of daffodils for a total of £80 and 80 bunches of tulips for a total of £50. Jo then sells the flowers in a market. In the morning, Jo sells 75 bunches of daffodils for 80p a bunch and 50 bunches of tulips for 90p a bunch. In the afternoon, Jo sells all the bunches of flowers she has left for 20p a bunch. Does Jo make a profit?

Correct answer:

p =  -10 lb

Step-by-step explanation:

$$\begin{gathered} a=80/120=\frac{2}{3}\doteq 0.6667 \\ b=50/80=\frac{5}{8}=0.625 \\ r=120+80-75-50=75 \\ p=75\cdot 0.80+50\cdot 0.90+r\cdot 0.20-80-50=75\cdot 0.80+50\cdot 0.90+75\cdot 0.20-80-50=-10=-10\text{lb} \\ p<0 \\ No \end{gathered}$$

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