50% of a% of b is 75% of b% of C. Which of the following is C ?
সমাধান
সঠিক উত্তর: Option B
50% of a% of b = b*50/100*a/100 = ab/200 Again 75% of b% of C = C*75/100*b/100 = 3bC/400 Now, ab/200=3bC/400 or, a =3C/2 or 3C = 2a or C =2a/3 So, C = 0.667a