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In a lottery, ydu must pick five numbers from 30. How many different ways of doing this are there? a)810000 b)243000000 c)142506 d)17100720 I have
In a lottery, ydu must pick five numbers from 30. How many different ways of doing this are there?
a)810000
b)243000000
c)142506
d)17100720
I have 8 books and need to choose 3 to take on holiday. How many different groups of three could I take?
a)336
b)70
c)6720
d)56
A password must be created using 5 different digits (from 0 to 9). How may different passwords are there?
a)30240
b)15120
c)3024
d)252
Mr. Boom chooses three students from a class of 20 to help him clean the windows. In how many ways could he work this
a)1140
b)3420
c)6840
d)8000
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