Question

There are 10 pairs shoes in a cupboard out of which 4 are picked

Answer 1

probability is 1-p(drawing four shoeswhich ar different)
p(drawing four shoes different) (20/20)*(18/19)*(16/18)*(14/17)=>224/323
so probability is 1-224/323=>99/323

Answer 2

Answer:

10 pairs of shoes contain 20 shoes .

out of which 4 are picked,so shoes are remaining=16 shoes

hence,8 pairs of shoes are there in the cupboard.

Step-by-step explanation: