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Logics and Riddles III Trivia Quiz

Part three of the series. Enjoy... (For those who love more statistical problems, I'm preparing some quizzes that will appear under the 'math' section in 'education'.)

A multiple-choice quiz by wimm. Estimated time: 6 mins.

Author
wimm

Time
6 mins

Type
Multiple Choice

Quiz #
48,659

Updated
Dec 03 21

# Qns
5

Difficulty
Difficult

Avg Score
2 / 5

Plays
6085

Question 1 of 5

1. Fill in the blank: 1, 10, 11, 100, 101, ... ?

Answer: (number)

NEXT>

Question 2 of 5

2. Fill in the blank: 2, 4, 2, 6, 3, 12, 8, 40, ...?

Answer: (number)

NEXT>

Question 3 of 5

3. Take a 3 by 3 square. The first row reads: 2, 3, 1. The second row: 1, 4, 5. The third row: 9, ..., 26. Which number is missing here?

Answer: (A whole number)

NEXT>

Question 4 of 5

4. Can you divide 222222 by 6 and get a natural number?

Yes

NEXT>

Question 5 of 5

5. What will be the result when I add the even numbers from 1 to 100 and I subtract all the odd numbers from 1 to 100?

Answer: (number, number 1 and 100 are also included in the question)

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Quiz Answer Key and Fun Facts

1. Fill in the blank: 1, 10, 11, 100, 101, ... ?

Answer: 110

This is the binary code for the numbers. 1=1, 10=2, 11=3,... We are looking for the number 6=110.

2. Fill in the blank: 2, 4, 2, 6, 3, 12, 8, 40, ...?

Answer: 35

The rule is: multiply by n , subtract n (with n starting from 2)...

3. Take a 3 by 3 square. The first row reads: 2, 3, 1. The second row: 1, 4, 5. The third row: 9, ..., 26. Which number is missing here?

Answer: 43

The first row is cubed, the second row is squared, the third row is the sum of this. So 3x3x3 + 4x4 = 43. It could also be 1st row squared plus 5 times second row for an answer of 29 .

4. Can you divide 222222 by 6 and get a natural number?

Answer: Yes

To check if a number can be divided by 6, you need to add all the figures of the number. When the original number is even AND the sum can be divided by 3, the original number can be divided by 6. 2+2+2+2+2+2=12...

5. What will be the result when I add the even numbers from 1 to 100 and I subtract all the odd numbers from 1 to 100?

Answer: 50

There are 50 even numbers between 1 and 100, and also 50 odd numbers. When I subtract the first odd number from the first even number, the result will be 1. This can be done 50 times, so the result is 50 x 1 = 50

Source: Author wimm

This quiz was reviewed by FunTrivia editor LeoDaVinci before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.

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Referenced Topics

General Brain Teasers Math Numbers and Patterns Riddles

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