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fluffy91
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[SOLVED] Help on Permuntation and Combination Question
After a show ,they decided to divide into two groups of size four and five, to go for a supper in 2 taxis. In how many ways could this be done if george and sally were to be in the same taxi
nCn
nPc
No of ways = (3p3 x 2! + 4p4)+(2p2 x 2! + 5p5) = 160
But answer is 56. How do u get the answer it is so small
Homework Statement
After a show ,they decided to divide into two groups of size four and five, to go for a supper in 2 taxis. In how many ways could this be done if george and sally were to be in the same taxi
Homework Equations
nCn
nPc
The Attempt at a Solution
No of ways = (3p3 x 2! + 4p4)+(2p2 x 2! + 5p5) = 160
But answer is 56. How do u get the answer it is so small