Mr and Mrs Tan have three sons. Each of their sons has two sisters. Each sister has three cousins. Each cousin has a great-grandparent.How many people are there? Answer11 people.Mr Tan, Mrs Tan, 1st son, 2nd son, 3rd son, 1st daughter, 2nd daughter. 1st cousin, 2nd cousin, 3rd cousin, and finally, the great-grandparent.
Pete Wheels is a used car salesman. He sold half his cars plus one more to his first customer of the day. To the second customer, he sold half of the remaining plus one more. To the third customer, he sold half the remainder plus one more; and to the fourth customer, he sold half
I need to get a new watch. The one I have loses exactly 20 minutes every hour. It now shows 4:00am and I know that it was correct at midnight, when I last set it. I happen to know that the watch stopped 4 hours ago, so what is the correct time now? Answer10:00am.
You have 55 coins totalling $10.00. There are more nickels than pennies, more dimes than nickels, and more quarters than dimes. How many of each coin do you have? Answer35 quarters $8.759 dimes .906 nickels .305 pennies .05$10.00
Sandy and Sue each have a whole number of dollars. I ask them how many dollars they have.Sandy says: “If Sue gives me some dollars, we’ll have the same amount of money. But if I give Sue the same number of dollars, she’ll have twice as much money as I have.”Sue says: “And if you
If 4 frogs lay 4 eggs in 4 days, and 3 ducks lay 3 eggs in 3 days, and 2 hens lay 2 eggs twice in two days, how many eggs will 1 frog, 1 duck and 1 hen lay in total from the beginning of February to the end of March in a leap
There are several students in the classroom. Some of them have 28 oranges, some have 30 and others have 31. Altogether they have 365 oranges.How many students are there? Answer365=3111+24=2813+1; therefore, there are 12 or 13 students.But if there are 13 students, they have at least 28*11+30+31=369 oranges.Therefore, there are 12 students.
Six trees stand equally spaced along one side of a straight road. The distance from the first tree to the fourth is 60 feet. What is the distance in feet between the first and last trees?The widths of the trees can be omitted.HintIt is not 40 feet.How many gaps exist between the first and the
Lester owns a factory adept at making a substance called Lest. It is made by using a substance called Tera.Making 1 unit of Lest involves using 11 grams of Tera and during it’s processing 2 grams of Tera are given out which are reusable.Now Lester has ordered for 128 grams of Tera.How many units of
Difficult Danny has acquired his nickname (and some other, less polite nicknames) due to the fact that, whenever he buys anything, he insists upon paying the exact amount, with precisely a 100 pieces of currency. Danny walks into McArnold’s and orders an iced coffee for $1.99. He pours 100 coins onto the counter, using some
Ms. Gold’s class is baking Valentine goodies for the entire grade. They want to be sure they have enough for the 96 children and 4 teachers to be able to have one each of each type of cookie. They decided they would fit the cookies of different sizes on each cookie sheet by following this
In order to encourage his son to study maths, a father agrees to pay his boy 8 cents for each problem correctly solved and to fine him 5 cents for each incorrect solution. At the end of 26 problems, neither owes anything to the other.How many problems did the boy solve correctly? AnswerTen problemsLet x
A husband and a wife have a combined age of 91. The husband is now twice as old as his wife was when he was as old as she is now. How old are they? AnswerHusband = 52, Wife = 39.If we call the husband’s age h, and the wife’s w, we know:h + w
A number of cats got together and decided to kill between them 999919 mice. Each cat killed an equal number of mice. How many cats do you think there were?There are two conditions:a) It is not one cat that killed the lot because I have used the word ‘Cats’.b) It is not 999919 cats because
Halloween was almost over, and Mr. Green had less than 20 candies left. When the doorbell rang, he thought he would give all the candies away.When he opened the door, there were two trick or treaters. He wanted to give away the candies evenly, but he noticed that when he divided the candies in two,