Opal won $100.00 betting on a horse race. She put half of her winnings into savings and bet the other half of her winnings. This time, she made a 60% profit and again, put half of her earnings into savings. How much did she put into her savings?
Thoughts? Step-by-step reasoning:
She won $100.00 and put half into savings so she put 100 / 2 = $50.00 into savings. She won $100.00 and put $50.00 into savings so that leaves 100 - 50 = $50.00 to bet. She bet $50.00 and made a 60% profit so her profit was 50 * .60 = $30.00. The total wins in the second bet are 30 + 50 = $80. She put half of her $80.00 earnings into savings so that's 80 / 2 = $40.00 into savings. She put $50.00 into saving from her 1st bet and $40.00 from her second so she has saved 50 + 40 = $90.00.
Thus, the answer is 90.