Question: James scored 13 field goals worth 3 points and 20 shots worth two points. How many total points did he score?
Answer with step-by-step thinking: The field goals were worth 3 * 13 = 39 points. The two - point shots were worth 2 * 20 = 40 points. So the total score is 39 + 40 = 79 points.
So the answer is 79.

Question: Emma is planning a dinner party, so she went to a shop to buy the products she needs. She bought 8 kg of cheese and 7 kg of vegetables. One kilogram of cheese costs $4 and one kilogram of vegetable costs is $2 more expensive. How much did she pay for her shopping?
Answer with step-by-step thinking: Emma payed 8 kg * $4 / kg = $32 for the cheese. The cost of one kilogram of vegetable is $4 + $2 = $6. So Emma payed 7 kg * $6 / kg = $42 for vegetables. In total Emma payed $32 + $42 = $74 for her shopping.
So the answer is 74.

Question: Alice had 10 dozens of watermelons. She sold 40% of it yesterday and 1/4 of the remaining today, How many watermelons are left to be sold tomorrow?
Answer with step-by-step thinking:
Ten dozens of watermelons are equal to 10 x 12 = 120 watermelons. Yesterday, Alice sold 120 x 40 / 100 = 48 watermelons. So, there are only 120 - 48 = 72 watermelons left for today. Today, Alice sold 72 x 1 / 4 = 18 watermelons. Hence, 72 - 18 = 54 watermelons are left to be sold tomorrow.
So the answer is 54.