There are 9 sweets in a bag. Five sweets are purple, three sweets are white and one sweet is pink.
Three sweets are selected at random without replacement.
Calculate the probability that the sweets are not all the same colour.

a = 11 : 4

b = 38

c = 1 for every 6

the answer is 2/54

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

true

step-by-step explanation:

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