A: Let Each Student's share be s Let Each Teacher's share be t B: 1st group : 25s + 2t = 97.50 --eqn 1 2nd group : 32s + 3t = 127.0 --eqn 2 C : (25s + 2t = 97.5)*3 = 75s + 6t = 292.5 --eqn3 (32s + 3t = 127.0)*2 = 64s + 6t = 254.0 --eqn4 Subtracting eqn4 from eqn3--> 11s = 38.5 so , s = 3.5 25*3.5 + 2t = 97.5 (from eqn1) so, t = 5 D: Each student has 3.5$ and Each teacher has 5$ in their share.