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Eight. If you can't multiply by fives, then your either an idiot, or too young to be using the internet.

Q: How many committees of 5 people can be formed by a group of 40 people?

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There are: 10C7 = 120

-5

The answer is 7C5 = 21.

(9 x 8 x 7 x 6)/(4 x 3 x 2 x 1) = 126committees.

This is a combination problem; use the nCr formula. nCr = 15! / ((15-4)!*4!) nCr = 15! /(11!*4!) nCr = 1365

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There are: 10C7 = 120

There are 2300 possible combinations.

They can't be split evenly into groups of six. Sixteen people can split into two groups of six, and there will be four people left over.

72

-5

-5

The answer is 7C5 = 21.

(9 x 8 x 7 x 6)/(4 x 3 x 2 x 1) = 126committees.

it has 20 people in the standing committee not how many people how many committees

1316

There are 16C6 = 16*15*14*13*12*11/(6*5*4*3*2*1) possible committees. That is, 8,008 of them.

120