Question

280 ft of room painted with 4/5 gallon of paint how many feet can you paint with 3 gallon

Answer 1

672 ft

Explanation:

4/5=.8

.8*280=224

224*3=672

Answer 2

1050 feet of room can be painted with 3 gallon of paint

Solution:

Given, 280 ft of room painted with 4/5 gallon of paint

We have to find how many feet can you paint with 3 gallon

Now, according to given information,

`(4)/(5)` gallon of paint ⇒ 280 feet of room

Then, 3 gallon of paint ⇒ "n" feet of room

So by chris cross method, we get

`\begin{array}{l}{n * (4)/(5)=3 * 280} \\\\ {n=3 * 280 * (5)/(4)} \\\\ {n=3 * 70 * 5} \\\\ {n=210 * 5=1050}\end{array}`

Hence, we can paint 1050 ft of the room with 3 gallons of paint.