if a and b buys a car,a pays 3/7 of the cost than

i)what is the fraction of b?

ii) if b pays rs.315240 more than a,what is the cost of car? 

(1) Fraction of cost paid by A =

So, fraction of cost to be paid by B =

(2) b pays rs.315240 more than a,what is the cost of car

Let the cost of car be x.

It is given that B pays Rs. 315420 more than A,

Thus, we can form the equation,

Thus, the cost of car = Rs. 2207940.

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