fraction
posted by bk .
A and B buy a car.A spends 5/11 of car's prices
(a)What is the fraction of B? He paid 25240Rs more than A?
(b)What is car's prices

If they are buying the car together, B must be contributing the other 6/11 of the car's total price, which I will call X.
(6/11)X  (5/11)X = X/11 = 25240 Rs
Solve that equation for X.
X = 11 x (25,240) = ?
I don't see why you wrote "prices" instead of "price". There is only one car.