John had $200. He gave 3/8 of his money to his mother and 3/10 to his father. How much money did John have left? Think carefully first, then make a decision:
John's mother received 3 / 8 x $200 = $75. His father got 3 / 10 x $200 = $60. Thus, John gave a total of $75 + $60 = $135. Therefore, John had $200 - $135 = $65 left. So, the answer is 65.