A boat travelled 6km upstream at X km/h. How long did the journey take? When returning downstream, the speed of the boat was 2X km/h. How long did the return journey take? If the downstream journey took 15 min less than the upstream journey, form an equation for X and solve it.

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.

umm you say your want to . but you do know that this is the mathematics.  

o~o