Rs 81700 is divided among P, Q and R.  If the ratio of amount between P and Q is 2 : 3 and between Q and R is 5 : 6.  Then find the amount of difference between P and R?

5700 19000 15200 34200

15200

P    :    Q    :    R    2    :    3               5    :    6   10    :   15   :    18    =    43R → ×1900 → 81700 Difference between P & R = (18 - 10) = 8R = 8 × 1900 = 15200