Quantitative Aptitude :: Permutation and Combination - Discussion
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Choose the correct option.
Six friends go to pizza corner there are 2 types of pizzas. And six different flavors are there they have to select 2 flavors from 6 flavors. In how many ways we can select?
A6C2
B6P2
C(6C2)/2!
DNone of these
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Number of ways 2 flavors can be selected out of 6 flavors = 6c2 = 15
Number of ways pizza can be selected = 2 [there are 2 types of pizzas]
∴ Number of ways to select a pizza = 2 × 15 = 30 ways
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STEP-BY-STEP
Number of ways 2 flavors can be selected out of 6 flavors = 6c2 = 15
Number of ways pizza can be selected = 2 [there are 2 types of pizzas]
∴ Number of ways to select a pizza = 2 × 15 = 30 ways
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SHORTCUT
but what abt selecting anyone pizza...i think ...2*6c2
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STEP-BY-STEP
To select 2 flavours from 6 flavours, use simple combination formula i.e= 6C2 ways.
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