Question: Milly is figuring out how long she needs to spend studying. She knows that her math homework will take 60 minutes. Her geography homework will take half as long as her math homework, and her science homework will take time equal to the mean amount of time she spent studying math and geography. How many minutes does Milly spend studying?
Answer with step-by-step thinking: First find how long Milly spends studying geography by dividing her math homework time by 2: 60 minutes / 2 = 30 minutes. Now find the total amount of time Milly spent on math and geography: 30 minutes + 60 minutes = 90 minutes. Now calculate the mean amount of time Milly spends on math and geography by dividing the total time spent by the number of subjects, which is 2: 90 minutes / 2 = 45 minutes. Now add the time Milly spent on all three subjects to find the total: 45 minutes + 30 minutes + 60 minutes = 135 minutes.
So the answer is 135.

Question: A 40-bead necklace is made up of three kinds of beads. There are seven amethyst beads and twice as many amber beads as amethysts. The third beads are turquoise. How many turquoise beads are in the necklace?
Answer with step-by-step thinking: There are 7 * 2 = 14 amber beads. Thus, there are 40 - 7 - 14 = 19 turquoise beads in the necklace.
So the answer is 19.

Question: Lilia has 15 peaches. She sold 10 peaches to her friends for $2 each, while 4 other peaches were sold to her relatives for $1.25 each, and she left the other one for herself. How much did she earn after selling 14 peaches?
Answer with step-by-step thinking:
Lilia earned 10 x $2 = $20 for selling the peaches to her friends. She also earned 4 x $1.25 = $5 for selling the peaches to her relatives. Therefore, Lilia earned $20 + $5 = $25 for selling 14 peaches.
So the answer is 25.