One man ordering pizza,there r 5 different varieties in the
shop,namely a,b,c,d,e. you can also order your own 5
varieties other then a,b,c,d,e.The ordered one should be in
a combination of 3 varieties of shop and 2 varieties of
your own taste.find how much different varieties he can
order?(plz provide the answer with solution)
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Answer Posted / giri
30.
bcoz there are 5 varieties.so 5c3 and i may like 2 so 2c2
or i may like 3 so 3c2.....and so on till 5c2
so...5c3+2c2+3c2+4c2+5c2=30.
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