Question

If 12Pr-2 : 11Pr-1 =3:14 then find r​

Answer 1

Answer:

Step-by-step explanation:

12Pr-2 : 11Pr-1 =3:14

12Pr-2 / 11Pr-1 =3/14

Or,14(12Pr-2)=3(11Pr-1)

Or,168Pr-28=33Pr-3

Or,168Pr=-33+28

Pr=-5/168

Or, r=-5/168P