Question

[2] 3] 3 4 4
The numbers 2, 3, 3, 4, 4, 4 are written on
six cards
Two cards are chosen, at random, without
replacement, to form a 2-digit number
The first card chosen shows the number of
Tens
The second card chosen shows the number
of Units
First card
Second card
Tens
Units
Expressing each answer in its simplest form
find the probability that the two cards show
(a) a number greater than 20,

Answer?
(b) the number 33,

Answer?
(c) the number 43 or the number 32

Answer?

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Answer 1

Answer:

a.) The probability is 1

b.) the probability is 2/6*1/5= 1/15

c.)The probability is 3/6*2/5 + 1/3*1/6 = 23/90