If Q is 25% less than P, and R is 20% less than Q, then what is P : R?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 5 : 3.
Let the value of P be 100.
Now, Q = 75% of P
⇒ 0.75 × 100 = 75
Also, R = 80% of Q
⇒ 0.80 × 75 = 60
Required ratio = 100 : 60
⇒ 10 : 6 = 5 : 3