Maths Quiz

Problem 1

A group of visitors visited me. The group was made up of 2 mothers, 2 daughters, 1 grandmother and 1 granddaughter. They were all at my house at the same time and yet I did not have 6 visitors. How many visitors did I have?

Problem 2

What are the next two numbers in the series?
1, 4, 13, 28, 49, ?, ?

Problem 3

Find the next 2 letters in this game series:

N, T, J, Q, ?, ?

Problem 4

A teacher asked the class to write down 5 odd digits that could add up to 14. Only one of them did it. What didi he write?

Problem 5

Think of a number. Add the next larger number. Add 9. Divide by 2. Subtract tthe original number. Is the answer 5?

Answers

5. The answer is 5

4. 11+1+1+1 = 14

3. K, A
   (Nine, Ten, Jack, Queen, King, Ace)

2. 76 and 109
    The difference between successive numbers increased by 6 each time.
    4 - 1 = 3, 3 + 6 = 9, 9 + 4 = 13
    13 - 4 = 9, 9 - 6 = 15, 15 + 13 = 28
    28 - 13 = 15, 15 = 6 = =21, 21 + 28 = 49
    49 + 28 = 21, 21 + 6 = 27, 27 + 49 = 76
    76 - 49 = 27, 27 +6 = 33, 33 + 76 = 109