Question: After collecting all the old electronics in their house, Lauryn made $2000 from selling the items on eBay. If her friend Aurelia also made 70% of what she sold on eBay after selling her used electronics, calculate the total amount of money the two friends made on eBay.
Answer: If Lauryn made $2000 from eBay, then her friend made 70 / 100 * $2000 = $1400. In total, the two friends made $2000 + $1400 = $3400. The answer is 3400.
[Question]Anika has 4 more than twice the number of pencils as Reeta. If Reeta has 20 pencils, how many pencils do the two have together?
[Answer]If Reeta has 20 pencils, then twice that number is 2 * 20 = 40 pencils. Anika has 4 more than twice the number of pencils as Reeta, which means she has 40 + 4 = 44 pencils. Together, the two have 44 + 20 = 64 pencils. The answer is 64.
Q: Brian has the same percentage of white stones and black stones in his collection of 100 stones as he does of grey stones and green stones in a separate collection. He has 40 grey stones and 60 green stones. How many white stones does Brian have if he has more white stones than black ones?
A: First we must determine the percentage of the grey and green stones. We add the two amounts together, finding 40 + 60 = 100. We then figure out that 40 / 100 = .4, meaning 40 percent of the stones are grey in the second selection. This means that 1.0 - .4 = .6, or 60 percent of the stones are green. Since there are more green stones than grey stones, and the white and black pile have the same percentage, and there are more white stones than black stones, that means there are 60 percent white stones in the first pile. Therefore, to find the number of white stones we multiply 100 * .6 = 60 white stones. The answer is 60.
Question: A band's members each earn $20 per gig. If there are 4 members and they've earned $400, how many gigs have they played?
Answer: The band earns $80 per gig because 4 x 20 = 80. They played 5 gigs because 400 / 80 = 5. The answer is 5.
[Question]To get his fill of oysters, Crabby has to eat at least twice as many oysters as Squido does. If Squido eats 200 oysters, how many oysters do they eat altogether?
[Answer]If Squido eats 200 oysters, when Crabby eats twice as many oysters as Squido does, he eats 2 * 200 = 400 oysters. Together, they eat 400 + 200 = 600 oysters. The answer is 600.
[Question]Among the career home run leaders for MLB, Hank Aaron has 175 fewer than twice the number that Dave Winfield has. Hank Aaron hit 755 home runs. How many home runs did Dave Winfield hit in his career?
[Answer]
Let x be the number of home runs Dave Winfield hit. 755 = 2x - 175. 930 = 2x. x = 465 home runs. The answer is 465.