## Task 3 - 170613

Each of the 27 pioneers in class 6a collected on average 5 bottles and $8 \mathrm{~kg}$ of waste paper. For each bottle, there were 5 pennies and for each $1 \mathrm{~kg}$ of waste paper, 15 pennies.

Class 6b collected waste materials worth $25 \mathrm{M}$.

Is the money thus earned enough for the joint train trip of both classes to the hiking day, which will cost $60 \mathrm{M}$?
In class 6a, $27 \cdot 5=135$ bottles and $27 \cdot 8 \mathrm{~kg}=216 \mathrm{~kg}$ of waste paper were collected. This amounts to $135 \cdot 5 \mathrm{Pf}+216 \cdot 15 \mathrm{Pf}=675 \mathrm{Pf}+3240 \mathrm{Pf}=3915 \mathrm{Pfennig}=39.15 \mathrm{M}$.

Together, both classes have collected $39.15 \mathrm{M}+25 \mathrm{M}=64.15 \mathrm{M}$. The amount of money is sufficient for the joint train ride.