Question

is the answer C

If a sprinkler waters 1 over 12 of a lawn in 1 over 2 hour, how much time will it take to water the entire lawn?

7 over 12 hour
1 over 6 hour
6 hours
10 hours

Answer 1

same problem as before. can you write the ratio ?

Answer 2

its not the same problem as before

Answer 3

so im right that it will take 6 hours to water the full lawn

Answer 4

you could do it this way
1/12 of the lawn in 1/2 hour
1/12 in the next 1/2 hour
add up to get
2/12 in 1 hour
or 1/6 of the lawn in 1 hour
how many hours to get all of the lawn? 1/6+1/6+1/6+1/6+1/6+1/6
(it takes an hour for each 1/6)

Answer 5

im just asking for a simple question and its am i right or no

Answer 6

but the faster way is to say
\[ \frac{ \frac{1}{2} \ hour}{ \frac{1}{12} \ lawn } = \frac{x \ hours}{1 \ lawn }\]

Answer 7

x=6