Although Jim and Barbara had to buy four presents for various wedding then found they could not agree on four identical presents. They bought for separate gifts and the first cost $5 more than the second. The second gift was half the cost of the first, plus one-third the cost of the first. The third cost two-thirds of the first and the last cost double the third. They spent a total of $115. What did each of the four gifts cost?
The gifts cost $30, $25, $20 and $40.
