Question

pls answer I will make brainlist​

Answer 1

Answer:

in parallel combination

1/R1=1/5+1/20

=4+1/20

=5/20

R1=4

Now

in parallel combination

1/R2= 1/15+1/20+1/10

= 4+3+6/60

R2=60/13

in series combination

Req= R1+R2

=4+60/13

=52+60/13

112/13