Question: At a certain school, 2/3 of the population are females. One-tenth of the males are foreign students. If the school has 300 students, how many students are non-foreign male students?
Answer: There are 300 x 2 / 3 = 200 females in the school. So, 300 - 200 = 100 are males. Out of the 100 males, 100 x 1 / 10 = 10 are male foreign students. Thus, there are 100 - 10 = 90 non - foreign male students. The answer is 90.
[Question]There are 20 boys and 11 girls in the second grade and twice that number in the third grade. How many students are in grades 2 and 3?
[Answer]There are 20 + 11 = 31 students in second grade. There are 31 x 2 = 62 students in third grade. In total, there are 31 + 62 = 93 students. The answer is 93.
Q: The school band is having a car wash to raise money. Their goal is to collect $150. So far they have earned $10 each from three families and $5 each from 15 families. How much more money do they have to earn to reach their goal?
A: The school band earned $10 / family * 3 families = $30 from three families. The school band earned $15 / family * 5 families = $75 from 15 families. The school band earned $30 + $75 = $105 total. The school band needs $150 - $105 = $45 more to reach their goal. The answer is 45.
Question: Nicole collected 400 Pokemon cards. Cindy collected twice as many, and Rex collected half of Nicole and Cindy's combined total. If Rex divided his card equally among himself and his three younger siblings, how many cards does Rex have left?
Answer: Cindy has 400 x 2 = 800 cards. Nicole and Cindy have 400 + 800 = 1200 cards. Rex has 1200 / 2 = 600 cards. Rex is left with 600 / (3 + 1 = 4) = 150 cards. The answer is 150.
[Question]Tobias is buying a new pair of shoes that costs $95. He has been saving up his money each month for the past three months. He gets a $5 allowance a month. He also mows lawns and shovels driveways. He charges $15 to mow a lawn and $7 to shovel. After buying the shoes, he has $15 in change. If he mows 4 lawns, how many driveways did he shovel?
[Answer]He saved up $110 total because 95 + 15 = 110. He saved $15 from his allowance because 3 x 5 = 15. He earned $60 mowing lawns because 4 x 15 = 60. He earned $35 shoveling driveways because 110 - 60 - 15 = 35. He shoveled 5 driveways because 35 / 7 = 5. The answer is 5.
[Question]At the pet shop, there were 3 birds, 5 dogs, 4 snakes, and 1 spider for sale. How many legs were there in total?
[Answer]
The 3 birds have 2 legs each, for a total of 3 * 2 = 6 paws. The 5 dogs have 4 legs each, for a total of 5 * 4 = 20 paws. The 1 snake has no paws, and a spider has 8 legs. The total number of paws is 6 + 20 + 8 = 34. The answer is 34.