Question

Q.24
Find r if P (10,r+1): P (11, r)= 30:11.​

Answer 1

Answer:

12.16

Step-by-step explanation:

p(10,r+1):p(11,r)=30:11

p(10)+p(r+1)

------------. =. 30

p(11)+p(r). ----

11

110+11r+11=330+30r

110-330+11=30r-11r

-231=19r

-231÷19=r

.

. . r=12.16