Maybe this
260000 *20%=52000 ao rest maount=208000
now 6.5% for 25%
now P=208000 and rate 6.5%
apply
25:63=25/63=0.39682539682=0.40=40%
Hoped I helped!
The plane PRS passes through the points P, R and S. So it contains the line RS. Also the plane QRS passes through the points Q, R and S. So it contains the line RS as well. Since both the planes contain the line RS, the line RS must be the intersection of plane PRS and QRS
