P is 6 times greater than Q then by what per cent is Q smaller than P?

Explanation:-

Let Q = 10.
Then, P = 60.
Q is 50 less than P.
Q, % less than P = (50 /60)*100 = 83.33%.

Alternative Method

10 (Q)==(6 times greater)==> 60(P)==x%↓(Less than Q)==>10 (Q).
Now, x = 50*100/60 = 83.33%.