Latest CDS Aptitude Question SOLUTION: A girl has to make pizza with different toppings. There are 8 different toppings. In how many ways can she make pizzas with 2 different toppings.

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(#M40156461) CDS Category question Keep an EYE

A girl has to make pizza with different toppings. There are 8 different toppings. In how many
ways can she make pizzas with 2 different toppings.

Asked In CDS divyasree (8 years ago)

Unsolved Read Solution (6)

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Read Solution (6) :

jhon christopher  (5 years ago)

8c2 ways can a girl do

Is this solution Helpfull? Yes (1) | No   

AKASH SINGH  (8 years ago)

8c2=28 different ways.

Is this solution Helpfull? Yes | No (1)  

manish mena  (8 years ago)

just calculate 8c2=7*8/2=28

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Saurav Tripathy  (6 years ago)

Their is given that total no of toppings are = 8
but we are allowed to make 2 pizza only.
So, 8 toppings can be used = 8C2 ( * WE HAVE USED COMBINATION METHODE BECAUSE OF WE HAVE TO COMBINE 8 TOPPINGS IN 2 PIZZA IN DIFFRENT WAYS AS MUCH AS WE CAN )
So, final answer is = 28.

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tannu  (1 year ago)

no. of ways to select 2 objects out of 8=nCr=8C2=28
no. of ways of arranging two different toppings after selection=28*2!=56

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Aditya  (1 year ago)

28
Use combination formula

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