Question

Braden has two fair cubes. One is blue and the other is red. What is the probability that the blue cube lands on a five and the red lands on an even number? PLZ HELPPPP

Answer 1

Answer:

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Step-by-step explanation:

Two cubes have their faces as red or blue.First cube have 5 faces as red and 1 face as blue

⇒ Probability of first cube to have its face as red=

6

5

⇒ Probability of first cube to have its face as blue=

6

1

Let second cube have x faces as red.

⇒ Probability of second cube to have its face as red=

6

x

⇒ Probability of second cube to have its face as blue=(1−

6

x

)

∴ The probability that cubes show same color when thrown=(ProbabilityshowingbothasRed)+(ProbabilityshowingbothasBlue)

⇒

2

1

=(

6

5

×

6

x

)+(

6

1

×(1−

6

x

))

⇒5x−x+6=18

⇒x=3