[Question]Tim owns rental properties. He decides to replace all the locks and needs to get 3 keys per lock. He owns two apartment complexes which each have 12 apartments. How many keys does he need to make?
[Answer]There are 2 * 12 = 24 apartments he needs keys for. So he needs 24 * 3 = 72 keys. The answer is 72.
Q: Ivan had $10 and spent 1/5 of it on cupcakes. He then spent some money on a milkshake and had only $3 left. How much is the milkshake?
A: Ivan spent a total of $10 - $3 = $7 on cupcakes and a milkshake. The cost of the cupcake is $10 x 1 / 5 = $2. So, $7 - $2 = $5 was spent on the milkshake. The answer is 5.
Question: If Jade earns $1600 per month and spent 75% of it on living expenses, one-fifth on insurance, and saves the rest, how much does she save per month?
Answer: Jade spends $1600 x 75 / 100 = $1200 for living expenses. She spends $1600 x 1 / 5 = $320 for insurance. She spends a total of $1200 + $320 = $1520 for living expenses and insurance. So, she saves $1600 - $1520 = $80 per month. The answer is 80.
[Question]On a Sunday morning, Josephine sold milk in the farm stall. The buyers brought their containers. She filled three containers with two liters each, two containers with 0.75 liters each, and five containers with 0.5 liters each. How many liters of milk did Josephine sell in total?
[Answer]Josephine filled a total of 2 x 3 = 6 liters from the three containers with two liters each. She filled a total of 0.75 x 2 = 1.5 liters from the two containers with 0.75 liters each. She filled a total of 0.5 x 5 = 2.5 liters from the five containers with 0.5 liters each. Therefore, she sold a total of 6 + 1.5 + 2.5 = 10 liters of milk. The answer is 10.
Q: Stephanie is moving into a new apartment. She needs to figure out how many pieces of silverware she should purchase. She needs spoons, butter knives, steak knives, and forks. For herself she figures 5 of each would be sufficient. But in case she has guests, she wants to have 10 extra pieces of each type. Then she realizes that if everything is clean at the same time, that she will have too many of everything and not enough room to fit them in her kitchen silverware drawer. So she decides to purchase 4 fewer spoons, 4 fewer butter knives, 5 fewer steak knives, and 3 fewer forks. How many pieces total of all the silverware is Stephanie going to buy?
A: Stephanie wants to get 5 each of each type of silverware for herself. 5 spoons + 5 butter knives + 5 steak knives + 5 forks = 20 pieces of silverware. She wants 10 extra of each type for guests, 10 x 4 = 40. She decides to purchase less of each type. She was originally purchasing 15 of each type. 15 spoons - 4 less spoons = 11 spoons. 15 butter knives - 4 less = 11. 15 steak knives - 5 = 10. 15 forks - 3 less forks = 12. Stephanie is going to purchase 11 spoons, 11 butter knives, 10 steak knives, and 12 forks. 11 + 11 + 10 + 12 = 44. Stephanie is going to purchase 44 pieces of silverware. The answer is 44.
Question: Arman is six times older than his sister. His sister is 2 years old four years ago. In how many years will Arman's age be 40?
Answer:
Arman's sister is 4 + 2 = 6 years old now. So, Arman is 6 x 6 = 36 years old. Hence, Arman will be 40 in 40 - 36 = 4 years. The answer is 4.