Bookwork code: N84
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Zak has 11 shirts and 8 ties in his wardrobe.
a) On Thursday morning, he picks a shirt and a tie at random from
the wardrobe.
How many possible combinations are there?
b) On Thursday evening, he puts the tie back in the wardrobe but
not the shirt. On Friday morning, he picks a shirt and a tie at
random from the wardrobe again.
How many possible combinations are there now?
