The Nguyen family and the Cooper family each used their sprinklers last summer. The water output rate for the Nguyen family's sprinkler was 30L per hour. The water output rate for the Cooper family's sprinkler was 35L per hour. The families used their sprinklers for a combined total of 40 hours, resulting in a total water output of 1325L. How long was each sprinkler used?

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.

15: 24

62.5%

step-by-step explanation: