# Homework

In the crate are 18 plums, 27 apricot and 36 nuts. How many pieces of fruit left in the crate when Peter took 8 ninth:

1. nuts
2. apricots
3. fruit
4. drupe

Correct result:

pcs of fruit:  45
pcs of fruit:  21
pcs of fruit:  5
pcs of fruit:  5

#### Solution:

$a=18+27=45$
$b=18+27-\frac{8}{9}\cdot 27=21$
$c=18+27-\frac{8}{9}\cdot \left(18+27\right)=5$
$d=18+27-\frac{8}{9}\cdot \left(18+27\right)=5$

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