Question

Please help me!!!!


Ernest bought some cans of paint and 4/5 of a liter of special paint additive formulated to reduce mildew. Before painting his house, he used all of the additive to put 2/5 of a liter of additive in each can. How many cans of paint did Ernest buy?

Answer 1

Answer:

He bought 2 cans of paint

Step-by-step explanation:

If he put ⅖ in each, and ⅘ total, he would have had 2 cans

Answer 2

Quantity of special paint additive Ernest bought = $\tt \frac{4}{5} \: of \: a \: litre$

Quantity of additive he put in each can = $\tt \frac{2}{5} \: of \: a \: litre$

Number of cans of paint he bought :

$=\tt \frac{4}{5} \div \frac{2}{5}$

$= \tt\frac{4}{5} \times \frac{5}{2}$

$= \tt\frac{4 \times 5}{5 \times 2}$

$=\tt \frac{20}{10}$

$\color{plum} = \tt2 \: paint \: cans$

▪︎Therefore, Ernest bought 2 paint cans.