threerings made of gold and set with diamonds are of the same weight.theprices of the rings are rs.a,b,c. and the weights o the diamond are of3,4,5 units.if the price of the diamond varies as the square of itsweight.show that the price of the diamond is 1/2(a+c-2b) and that of oneunit weight of diamond is 1/2(9a+7c-16b).given that the making chargeof the rings are same.