Math, asked by mohitcsmohit262, 11 months ago

There are 4 boxes coloured red ,yellow green and blue.If 2 boxes are selected ,how many combination are there for atleast one green box or one red box to be selected

Answers

Answered by pradiptripathy1165
1
for red nCr=4C1=4
for green nCr=4C1=4
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