[Question]Because of the migration of salmon, the total number of salmon in river Trout has increased by ten times the number initially in the river. If there were 500 salmons initially, calculate the total number of fish in the river now.
[Answer]If the number of salmons in the river increased by ten times the number initially there, then 500 * 10 = 5000 new salmons migrated up the river. The total number of salmon in the river now is 5000 + 500 = 5500. The answer is 5500.
Q: Enrico owns a rooster farm, he sells each rooster for $0.50 per kilogram. He was able to sell a 30-kilogram rooster and a 40-kilogram rooster, how much money was he able to earn?
A: Enrico was able to sell the 30 - kilogram rooster for 30 x 0.50 = $15. And he was able to sell the 40 - kilogram rooster for 40 x 0.50 = $20. Therefore, he was able to earn $20 + $15 = $35. The answer is 35.
Question: Paul needed to buy some new clothes for work. He had a 10% off coupon that he could use on his entire purchase after any other discounts. Paul bought 4 dress shirts at $15.00 apiece, 2 pairs of pants that each cost $40.00. He found a suit for $150.00 and 2 sweaters for $30.00 each. When he got to the register, the clerk told him that the store was offering 20% off of everything in the store. After the discounts and the coupon, how much did Paul spend on his new clothes?
Answer: 4 dress shirts cost $15.00 each so 4 * 15 = $60.00. 2 pants at $40.00 cost 2 * 40 = $80.00. 2 sweaters at $30.00 cost 2 * 30 = $60.00. Add the suit at $150 and the other items the total was 150 + 60 + 80 + 60 = $350. The store has having a 20% off sale so .20 * 350 = $70.00 discount. His new total would be 350 - 70 = $280.00. Then add his 10% discount, .10 * 280 = $28.00 additional off. His final total came out to 280 - 28 = $252.00. The answer is 252.
[Question]Three baskets A, B and C contain different numbers of differently colored marbles. Basket A contains 4 red marbles and 2 yellow marbles. Basket B contains 6 green marbles and 1 yellow marble. Basket C contains 3 white marbles and 9 yellow marbles. What is the difference between the number of each color of marble in the basket that has the greatest difference?
[Answer]In basket A the number difference between differently colored marbles is 4 - 2 = 2. In basket B the difference is 6 - 1 = 5. In basket C the difference is 9 - 3 = 6. Comparing 2, 5 and 6 shows that 6 is the greatest difference. The answer is 6.
Q: Kendra tracks the different species of birds they spot on their birdwatching trip. On Monday they visited 5 sites and saw an average of 7 birds at each site. On Tuesday, Kendra visited 5 sites and saw an average of 5 birds at each site. On Wednesday visited 10 sites and saw an average of 8 birds at each site. On average, how many different birds did Kendra see on each site?
A: On Monday Kendra saw 5 sites x 7 birds / site = 35 different birds. On Tuesday Kendra saw 5 sites x 5 birds / site = 25 different birds. On Wednesday Kendra saw 10 sites x 8 birds / site = 80 different birds. In total Kendra saw 35 birds + 25 birds + 80 birds = 140 different birds. In total Kendra visited 5 sites + 5 sites + 10 sites = 20 sites. On average Kendra saw 140 birds / 20 sites = 7 different birds at each site. The answer is 7.
Question: Susie's pet lizard Moe takes 10 seconds to eat 40 pieces of cuttlebone each day. How long would it take Moe to eat 800 pieces?
Answer:
If it takes Moe 10 seconds to eat 40 cuttlebones, then in one second she eats 40 cuttlebones / 10 seconds = 4 cuttlebones / second. Since the cat eats 4 pieces of cuttlebone in 1 second, 800 pieces will be 800 cuttlebones / 4 cuttlebones / second = 200 seconds. The answer is 200.