Matt has 84 * 10 = 840 jellybeans. Matilda has 840 / 2 = 420 jellybeans.
The answer: 420
Reverse engineering the question: Matilda has half as many jellybeans as Matt. Matt has ten times as many jellybeans as Steve. If Steve has 84 jellybeans, how many jellybeans does Matilda have?
Reasoning and answer: He breaks 2 strings a night for 6 nights for a total of 2 * 6 = 12 broken strings. He breaks 12 strings per week so over 12 weeks, he will need to replace 12 * 12 = 144 guitar strings.
The answer: 144
What was the question?
Question: Dave breaks 2 guitar strings per night when playing live. If he performs 6 shows a week for 12 weeks, how many guitar strings will he need to replace?
The ones with nuts that they ate was 40% of the box because 80% x .5 = 40%. The ones without nuts that they ate equaled 25% of the box because 50% x .5 = 25%. They ate 65% of the box because 40 + 25 = 65. They left 35% of the box because 100 - 65 = 35. The box had 80 chocolates because 28 / .35 = 80.
The answer: 80
Reverse engineering the question: Yvonne brings a box of chocolates to school. Half have nuts and half do not. The students eat 80% of the ones with nuts and eat half of the ones without nuts. If there are 28 chocolates left, how many chocolates were in the box?
Reasoning and answer: Mrs. Lacson sold a total of 20 + 15 = 35 sweet potatoes. Hence, there are still 80 - 35 = 45 sweet potatoes left unsold.
The answer: 45
What was the question?
Question: Mrs. Lacson harvested 80 sweet potatoes. She sold 20 of them to Mrs. Adams and 15 of them to Mr. Lenon. How many sweet potatoes are not yet sold?
Elsa had 40 marbles - 3 - 5 = 32 marbles. Elsa then gained 12 marbles + 32 = 44 marbles. At dinner Elsa received 2 * 5 marbles from Susie = 10 marbles. In total Elsa had 44 marbles + 10 = 54 marbles.
The answer: 54
Reverse engineering the question: Elsa started the day with 40 marbles. At breakfast, she lost 3 marbles while playing. At lunchtime, she gave her best friend Susie 5 marbles. In the afternoon, Elsa's mom bought her a new bag with 12 marbles. Susie came back and gave Elsa twice as many marbles as she received at lunch. How many marbles did Elsa end the day with?
Kendy transferred $60 x 1 / 2 = $30 to her sister. So, She transferred a total of $60 + $30 = $90. Therefore, Kendy has $100 + $90 = $190 in the account before the transfer.
The answer: 190
Reverse engineering the question:
Kendy made 2 online bank transactions. She transferred $60 to her mom and half that amount to her sister. As a result, her account now has $100 left in it. How much money was in the account before the transfer?