Reasoning and answer: The 5% discount amounts to $50 x 5 / 100 = $2.50. So the total discount given to the customer for 4 months was $2.50 x 4 = $10. The customer was supposed to pay $50 x 4 = $200 in all for 4 months without discount. Since the customer is entitled to the discount, then he only paid a total of $200 - $10 = $190 for 4 months.
The answer: 190
What was the question?
Question: An internet provider gives a 5% discount if the customer pays before the 25th day of the month. If the monthly internet rate is $50, how much did the customer pay in all for 4 months if he paid every 25th of the month?
After doubling he was able to hold 80 * 2 = 160 kg per hand. Specialization gave him another 160 * .1 = 16 kg. So he lifted 160 + 16 = 176 kg per hand. That means he lifted a total of 352 kg.
The answer: 352
Reverse engineering the question: Tom originally was only able to lift 80 kg farmer handles per hand. After some training, he was able to double this number. He then decided to specialize and was able to get an extra 10%. How much weight can he hold in total?
Reasoning and answer: Mandy's brother's age is 3 years x 4 = 12 years old. Her sister's age is 12 years - 5 years = 7 years old. The age difference between Mandy and her sister is 7 years - 3 years = 4 years.
The answer: 4
What was the question?
Question: Mandy is 3 years old. Her brother is 4 times as old as she is. Her sister is 5 years younger than her brother. What is the age difference between Mandy and her sister?
If she drives 400 miles today, the car will have consumed 4 * 400 = 1600 gallons of gas. Tomorrow, if she drives 200 more miles, the total distance will be 200 + 400 = 600 miles. The fuel consumption by the car tomorrow is 4 * 600 = 2400 gallons. The car's total fuel consumption in the two days is 2400 + 1600 = 4000 gallons.
The answer: 4000
Reverse engineering the question: Dream's car consumes 4 gallons of gas per mile. If she drives 400 miles today and 200 more miles tomorrow than today, how many gallons of gas will the car consume?
Reasoning and answer: Harold shared 100 - 20 = 80 marbles with his friends. Therefore, his 5 friends got 80 / 5 = 16 marbles each.
The answer: 16
What was the question?
Question: Harold had 100 marbles. He kept 20 marbles and shared the rest evenly among his 5 friends. How many marbles did each friend get?
Reasoning and answer: The value - added tax is 1700 * 15% = 255. The price of the television including tax 1700 + 255 = $1955.
The answer: 1955
What was the question?
Question:
I bought a TV for $1700 excluding tax. What is the price of the television when calculating 15% of the value-added tax?