Random Math Problems

The answers of the questions are down below.

Question 1:

If 1=3

2=3

3=5

4=4

5=4

Then, 6=?

Question 2:

What is the number of parking space covered by the car?

This tricky math problem went viral a few years back after it appeared on an entrance exam in Hong Kong… for six-year-olds. Supposedly the students had just 20 seconds to solve the problem!

Question 3:

Replace the question mark in the above problem with the appropriate number.

Question 4:

Which number is equivalent to 3^(4)÷3^(2)?

This problem comes straight from a standardized test given in New York in 2014.

Question 5:

There are 49 dogs signed up for a dog show. There are 36 more small dogs than large dogs. How many small dogs have signed up to compete? 

This question comes directly from a second grader's math homework.

Question 6:

Add 8.563 and 4.8292.

Question 7:

I am an odd number. Take away one letter and I become even. What number am I?

Question 8:

Using only an addition, how do you add eight 8’s and get the number 1000?

Question 9:

Sally is 54 years old and her mother is 80, how many years ago was Sally’s mother times her age?

Question 10:

Which 3 numbers have the same answer whether they’re added or multiplied together?

Question 11:

There is a basket containing 5 apples, how do you divide the apples among 5 children so that each child has 1 apple while 1 apple remains in the basket?

Question 12:

There is a three-digit number. The second digit is four times as big as the third digit, while the first digit is three less than the second digit. What is the number?

Question 13:

Fill in the question mark:

Question 14:

Two girls were born to the same mother, at the same time, on the same day, in the same month and the same year and yet somehow they’re not twins. Why not?

Question 15:

A ship anchored in a port has a ladder which hangs over the side. The length of the ladder is 200cm, the distance between each rung in 20cm and the bottom rung touches the water. The tide rises at a rate of 10cm an hour. When will the water reach the fifth rung?

Question 16:

The day before yesterday I was 25. The next year I will be 28. This is true only one day in a year. What day is my Birthday? 

Question 17:

You have a 3-litre bottle and a 5-litre bottle. How can you measure 4 litres of water by using 3L and 5L bottles? 

Question 18:

3 Friends went to a shop and purchased 3 toys. Each person paid Rs.10 which is the cost of one toy. So, they paid Rs.30 i.e. total amount. The shop owner gave a discount of Rs.5 on the total purchase of 3 toys for Rs.30. Then, among Rs.5, Each person has taken Rs.1 and remaining Rs.2 given to the beggar beside the shop. Now, the effective amount paid by each person is Rs.9 and the amount given to the beggar is Rs.2. So, the total effective amount paid is 9*3 = 27 and the amount given to beggar is Rs.2, thus the total is Rs.29. Where has the other Rs.1 gone from the original Rs.30?

Question 19:

How to get a number 100 by using four sevens (7’s) and a one (1)?

Question 20:

Move any four matches to get 3 equilateral triangles only (don’t remove matches)

And the answers are:

  1. Answer: is 3, because ‘six’ has three letters

  2. Answer: 87

Believe it or not, this “math” question actually requires no math whatsoever. If you flip the image upside down, you’ll see that what you’re dealing with is a simple number sequence.

3. Answer: 6

4. Answer: 9

5. Answer: 42.5

To figure out how many small dogs are competing, you have to subtract 36 from 49 and then divide that answer, 13 by 2, to get 6.5 dogs, or the number of big dogs competing. But you’re not done yet! You then have to add 6.5 to 36 to get the number of small dogs competing, which is 42.5. Of course, it’s not actually possible for half a dog to compete in a dog show, but for the sake of this math problem let’s assume that it is.

6. Answer: 13.3922

Adding two decimals together is easier than it looks. Don’t let the fact that 8.563 has fewer numbers than 4.8292 trip you up. All you have to do is add a 0 to the end of 8.563 and then add like you normally would.

7. Answer:  Seven (take away the ‘s’ and it becomes ‘even’).

8. Answer:  888 + 88 + 8 + 8 + 8 = 1000

9. Answer:  41 years ago, when Sally was 13 and her mother was 39.

10. Answer: 1, 2 and 3

11. Answer: 4 children get 1 apple each while the fifth child gets the basket with the remaining apple still in it.

12. Answer: 141

13. Answer: 25

14. Answer: Because there was a third girl, which makes them triplets!

15. Answer: The tide raises both the water and the boat so the water will never reach the fifth rung. 

16. Answer: December 31

17. Answer: Solution 1 :

  • First, fill 3Lt bottle and pour 3 litres into 5Lt bottle.

  • Again fill the 3Lt bottle. Now pour 2 litres into the 5Lt bottle until it becomes full.

  • Now empty 5Lt bottle.

  • Pour remaining 1 litre in 3Lt bottle into 5Lt bottle.

  • Now again fill 3Lt bottle and pour 3 litres into 5Lt bottle.

  • Now you have 4 litres in the 5Lt bottle. That’s it.

Solution 2 :

  • First, fill the 5Lt bottle and pour 3 litres into 3Lt bottle.

  • Empty 3Lt bottle.

  • Pour remaining 2 litres in  5Lt bottle into 3Lt bottle.

  • Again fill the 5Lt bottle and pour 1 litre into 3 Lt bottle until it becomes full.

  • Now you have 4 litres in the 5Lt bottle. That’s it.

18. Answer: The logic is payments should be equal to receipts. We cannot add the amount paid by persons and the amount given to the beggar and compare it to Rs.30.The total amount paid is ₹27. So, from ₹27, the shop owner received 25 rupees and beggar received ₹ 2. Thus, payments are equal to receipts.

19. Answer: Answer 1: 177 – 77 = 100 ;

Answer 2: (7+7) * (7 + (1/7)) = 100 

20. Answer: Move 2, 4, 5, 6 matches

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