If Sally had $20 less, she would have $80. If Jolly has $20 more, she would have $70. How much money do Sally and Jolly have altogether? Give the rationale and then the answer.
Let's think step by step. Sally has $80 + $20 = $100. While Jolly has $70 - $20 = $50. Thus, Sally and Jolly have $100 + $50 = $150 altogether.. The answer is: 150.

Tim takes his 3 children trick or treating. They are out for 4 hours. Each hour they visited 5 houses. Each house gives 3 treats per kid. How many treats do his children get in total? Give the rationale and then the answer.
Let's think step by step. They visit 4 * 5 = 20 houses. That means each child get 20 * 3 = 60 treats. So in total they get 60 * 3 = 180 treats.. The answer is: 180.

Jessica is having a sweet tooth and bought 10 chocolate bars, 10 packs of gummy bears, and 20 bags of chocolate chips. Her total rang up to $150. If the cost of a pack of gummy bears is $2 and a bag of chocolate chips costs $5, how much does 1 chocolate bar cost? Give the rationale and then the answer.
Let's think step by step. The gummy bears cost 10 * 2 = $20. The chocolate chips cost 5 * 20 = $100. The total cost for these two is 100 + 20 = $120. The chocolate bars in total cost 150 - 120 = $30. A single chocolate bar costs 30 / 10 = $3.. The answer is: 3.