Question: The average temperature in Orlando in a particular week was 60 degrees. If the temperature on each of the first 3 days in that week was 40, and the temperature for Thursday and Friday was 80 degrees each, calculate the total temperature of the remaining days of that week.
Answer with step-by-step thinking: If the average temperature of Orlando for the week was 60, then the total temperature for the week was 7 * 60 = 420 degrees. For the first three days of that week, the temperature was 40 degrees each day, totaling 3 * 40 = 120 degrees in the three days. The temperature for Thursday and Friday was 80 degrees each, a total of 80 * 2 = 160 degrees. The temperature of Orlando for the first five days was 160 + 120 = 280 degrees. The temperature for the remaining two days is 420 - 280 = 140 degrees.
So the answer is 140.


Question: John has 3 bedroom doors and two outside doors to replace. The outside doors cost $20 each to replace and the bedroom doors are half that cost. How much does he pay in total?
Answer with step-by-step thinking: The outside doors cost 2 * $20 = $40. Each indoor door cost $20 / 2 = $10. So all the indoor doors cost $10 * 3 = $30. That means the total cost is $40 + $30 = $70.
So the answer is 70.


Question: Tara has been planning to buy a laptop which costs $1000. A computer shop accepts payment in installments of $65 per month provided that a 20% down payment is made. If Tara wants to pay an additional $20 for the down payment, how much will her balance be after paying for 4 months?
Answer with step-by-step thinking:
Tara has to make a $1000 x 20 / 100 = $200 down payment. Since Tara wants to pay $20 more for the down payment, her total down payment will be $200 + $20 = $220. So her remaining balance payable over a year is $1000 - $220 = $780. Tara has to make a monthly payment of $780 / year / 12 months / year = $65 / month. The total cost of her payments for 4 months is $65 / month x 4 months = $260. Therefore, Tara's balance after 4 months is $780 - $260 = $520.
So the answer is 520.