Question

please any body answer immediately and correctly
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Answer 1

Answer:

4C is 4f in hindi years and the age of and frist world you the that the world is to of future truth you can will a good great ‍♂️ you the ❤ to and flowers

Answer 2

Explanation:

nCr−1:nCr:nCr+1=20:35:42

nCr−1:nCr=20:35

∴    (n−r)!r!n!×n!(r−1)!(n−r+1)!=35/20

⇒r(n−r+1)=47

⇒4n−4r+4=7r⇒4n+4=11r

nCr:nCr+1=35:42

⇒n−rr+1=65