How many kiloliters of water are in a reservoir?
1. If the reservoir were filled to capacity, there would be 430 more kiloliters in the reservoir.
2. The reservoir is normally maintained at 65% capacity.
Let c be the capacity, x be the number of kl in the reservoir
1. c-430= x ---> two variables one equation---> unsolvable---> insuff
2. x=65%c , the same to 1, insuff
1 and 2
two variables with two equations ,we get c=430/.35
--> x=.65c= .65*430/.35
If C is not OA, extremely weird