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Exercise 9. From a box of 10 lightbulbs, you are to remove 4. How many different sets of 4 lightbulbs could you remove? A talent contest has 8 contestants. Judges must award prizes for first, second, Exercise 10. and third places, with no ties. (a) In how many different ways can the judges award the 3 prizes? (b) How many different groups of 3 people can get prizes?

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Ans- ere threoure 4 (Uo-4)4 6 2.1 here ane 212 bus cun he hemumc 21 Let h= total no ot contestants plaue there ae 5 dibberntr un et pises rs pehere in 2.a)suppose there are 3 people who get prize. Then there are 6 different way that the people's get the prize at 1st or 2nd or at 3rd place  

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