Silas paid half = 150 / 2 = 75. Remaining bill paid by 5 friends = 75 + 10% of 150 = 75 + 15 = 90. Each person will pay 1 / 5 which is 90 / 5 = 18. Each friend will pay $18.
The answer: 18
Reverse engineering the question: The dinner bill for 6 friends came to $150. Silas said he would pay for half of the bill and the remaining friends could split the rest of the bill and leave a 10% tip for the whole meal. How many dollars will one of the friends pay?
Reasoning and answer: As Johnny and his son are humans, and humans walk on two legs, this means that between the two of them there are 2 * 2 = 4 legs' worth of organisms. There are two dogs walking along as well, and since dogs walk on 4 legs this means there are 2 * 4 = 8 legs' worth of organisms. We add these two totals together to find there are 4 + 8 = 12 legs' worth of organisms in total.
The answer: 12
What was the question?
Question: Johnny is out walking his two dogs at night, and his son joins him for the walk. How many legs' worth of organisms are traveling together for this walk?
The total capacity of the 40 chairs was 40 * 2 = 80 people. If 2 / 5 of the chairs were unoccupied, 2 / 5 * 80 = 32 people missed the board meeting since the number of members was the same as the chair's capacity. The number of board members who attended the meeting was 80 - 32 = 48.
The answer: 48
Reverse engineering the question: In a conference room, 40 chairs with a capacity of 2 people each were arranged in rows in preparation for the board meeting of a company, whose number of members was the same as the chairs' capacity. If 2/5 of the chairs were not occupied, and the rest each had two people, calculate the number of board members who did attend the meeting.
Reasoning and answer: The refurbished T - shirt costs $5 / 2 = $2.5. He earn $2.5 x 6 = $15 for the refurbished T - shirt. He can earn $5 x 2 = $10 for the T - shirts. He can earn $4 x 1 = $4 for the pants. He can earn $6 x 4 = $24 for the skirts. Therefore Karl can earn a total of $15 + $10 + $4 + $24 = $53.
The answer: 53
What was the question?
Question: Karl sells clothing in his store. He sells a T-shirt that costs $5, some pants that cost $4, and some skirts that cost $6, he also sells some refurbished t-shirts that cost half the original price. How much is his total income if he sold two T-shirts, one pair of pants, four skirts, and six refurbished T-shirts?
If Jemma sold 400 glasses frames at $5 each, she made 400 * $5 = $2000. Jemma sold twice as many frames as Dorothy, meaning Dorothy sold 400 / 2 = 200 frames. If Dorothy sold her glasses frames at half the price that Jemma sold hers, then it means she sold her glasses frames at $5 / 2 = $2.5 per glasses frame. In total, Dorothy made $2.5 * 200 = $500 from the sale of her glasses frames. Together, they made $2000 + $500 = $2500 from the sale of the glasses frames.
The answer: 2500
Reverse engineering the question: Dorothy sells glass frames at half the price that Jemma sells them. Jemma sells the glass frames at 5 dollars each, selling twice as many frames as Dorothy does. If Jemma sold 400 frames, how much did they make together in total from the sale of the glass frames?
The bags together weigh 16 + 30 = 46 kg. Removing the 4 kg, the bags will weigh 46 - 4 = 42 kg.
The answer: 42
Reverse engineering the question:
A bag full of sugar weighs 16 kg. A bag full of salt weighs 30 kg. If you remove 4 kg from the combined weight of these two bags, how much do the bags now weigh?