Question

Dave can clean pools at a constant rate of 3 pools in 12 hours. How many hours does it take for Dave to clean 10 pools?

Answer 1

Answer:

It will take 40 hours to clean 10 pools  

Step-by-step explanation:

Answer 2

$\large {\rm {\purple {\underbrace {\pink {ANSWER}}}}}$

$Time \: taken \: to \: clean \: 3 \: pools \: = 12 \: hours$

$Time \: taken \: to \: clean \: 1 \: pool \: = \frac{12}{3} = 4 \: hours$

$So,\: time \: taken \: to \: clean \: 10 \: pools = \\ {\red {\boxed {\boxed{4 \times 10 = 40 \: hours}}}}$

hope it helps...