P : Q = 4 : 5 and R is 15% less than Q. If Q = 300, then what is the sum of P and R?
Answer & explanation
Correct answer: option 3
Here,
P : Q = 4 : 5 and R is 15% less than Q
⇒ Q : R = 100 : 85 = 20 : 17
P : Q : R
4 : 5
: 20 : 17
16 : 20 : 17
⇒ 20 units = 300
⇒ 1 unit = 15
⇒ P + R = 16 + 17 = 33 x 15 = 495