[Question]Musa is the class teacher of a class of 45 students. He wants to split them into three groups by age. If a third of the class is under 11 years, and two-fifths are above 11 but under 13, how many students will be in the third group (13 years and above)?
[Answer]The first group is a third of the class which is (1 / 3) * 45 = 15 students. There are 15 students in the first group, so there are 45 - 15 = 30 students. The second group is two - fifths of the class which is (2 / 5) * 45 = 18 students. There are 18 in the second group so there are 30 - 18 = 12 students left in the third group. The answer is 12.
Q: Frank went to a shop to buy some food for his breakfast. He bought 10 buns for $0.1 each, two bottles of milk, for $2 each, and a carton of eggs, which was three times more expensive than one bottle of milk. How much did Frank pay for his breakfast shopping?
A: For the buns, Frank paid 10 * 0.1 = $1. He bought two bottles of milk, for $2 each, so he paid for them 2 * 2 = $4. One carton of eggs was three times more expensive than one bottle of milk, so it cost 3 * 2 = $6. So for all his shopping Frank had to pay 1 + 4 + 6 = $11. The answer is 11.
Question: Rollo has 3 guinea pigs, the first guinea pig eats 2 cups of food, the second guinea pig eats twice as much as the first one, and the third guinea pig eats 3 cups more than the second one. How many cups of food does Rollo need to feed all his Guinea pigs?
Answer: The second guinea pig eats 2 x 2 = 4 cups of food. The third guinea pig eats 4 + 3 = 7 cups of food. Therefore, Rollo needs a total of 2 + 4 + 7 = 13 cups of food for the guinea pig. The answer is 13.
[Question]Martin eats 1/2 cup of berries every day. The grocery store is selling a package of berries (1 cup per pack) for $2.00. How much will he spend on berries in a 30 day period?
[Answer]Martin eats 1 / 2 cup berries every day so over 30 days that's .5 * 30 = 15 cups of berries. The grocery store sells 1 cup packages of berries for $2.00 a pack. Martin needs 15 cups so that's 2 * 15 = $30.00. The answer is 30.
Q: John won $155250 in the lottery and decided to give one-thousandth of the $155250 to each of the top 100 students in his college. Calculate the total amount received by the hundred students of his college.
A: John will give 155250 / 1,000 = $155.25 to each student. For the hundred students, he will give: $155.25 * 100 = $15525. The answer is 15525.
Question: Codger is a three-footed sloth. He has a challenging time buying shoes because the stores only sell the shoes in pairs. If he already owns the 3-piece set of shoes he is wearing, how many pairs of shoes does he need to buy to have 5 complete 3-piece sets of shoes?
Answer:
To have five 3 - piece sets, he needs to have a total of 5 * 3 = 15 shoes,. If he already owns three shoes, then he needs to buy 15 - 3 = 12 additional shoes. Since each pair of shoes includes two shoes, he needs to buy a total of 12 / 2 = 6 pairs of shoes. The answer is 6.