x97agarwal wrote:

lets the total amount of oats = x

and the amount of barley = y

S1. Piglet A was fed x/4; not enough information AD out

S2. Piglet A was fed y/6; not enough information B is out

Combining: x/4 + y/6 = 1/2 ;

3x + 2y = 6

x and y cannot be -ve or zero

Hence for this equation to hold: x = 1 and y = 1.5 (3+3 = 6)

IMO C

Although C is the OA, you didn't give the total number of piglets. According to your variables, X and Y are the amounts of oat and barely respectively, but they are

NOT the number of piglets. So what's the number of piglets?