Question

Write any 10 intresting maths puzzles with answer

Answer 1

1. Can you find four consecutive prime numbers that add up to 220 ?

Ans- 47 + 53 + 59 + 61 = 220

2. Take 9 from 6, 10 from 9, 50 from 40 and leave 6.
How Come ??

Ans- SIX - 9 (IX) = S
9 (IX) - 10 (X) = I
40 (XL) - 50 (L) = X

=> SIX

3. What do you get if you add 3 to 300 five times?

Ans- pi * z * z * a

4. Find three positive whole numbers that have the same answer added together or when multiplied together.

Think ?

Ans- 1,2, & 3

1 x 2 x 3 = 6 and 1 + 2 + 3 = 6

5. When deepak was six years old he hammered a nail into his favorite tree to mark his height. 
Five years later at age eleven , deepak returned to see how much higher the nail was. 
If the tree grew by ten inches each year, how much higher would the nail be?

Ans- The nail would be at the same height since trees grow at their tops.

6. In a new Engineering Hostels containing 100 rooms. Ankit Garg was hired to paint the numbers 1 to 100 on the doors. 
How many times will Ankit have to paint the number eight ?

Ans- 20 times

8,18,28,38,48,58,68,78,98,80,81,82,83,84,85,86,87,88,88(2),89

7. 5+3+2 = 151022
9+2+4 = 183652
8+6+3 = 482466
5+4+5 = 202541
THEN ;
7+2+5 = ?

Ans - 143547

Answer 2

1). 1 = 5, 2 = 25, 3 = 325, 4 = 4325 ...Then 5 = ? 
Ans.- It is already written in the first that 1=5. So, 5=1

2). Take number 1000 and then add 20 to it. Now add 1000 one more time. 
Now add 30. Now add 1000 one more time. Now add 40. Now add 1000 one more time. Now add 10. What is the total? 
Ans.- 4100 is the correct answer. Some people might guess 5000.

3). Find three whole, positive numbers that have the same answer when multiplied together as when added together. 
Ans.- 100. Looks hard? Don't worry, just work it backwards and you'll find it very easy.

4). Can you find four consecutive prime numbers that add up to 220? 
Ans.- 47 + 53 + 59 + 61 = 220.

5). Can you arrange four 9's and use of almost 2 math symbols , make the total be 100? 
Ans.- 99+9/9 = 100

6). A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number.
A: I do not know your number.
B: Neither do I know your number.
A: Now I know.
There are four solution for this.What are they ?? 
Ans.- 2-3, 3-4, 7-8, 9-10.

7). I guess 76.8% readers will like this riddle.
What's the least number of people should read this post ? 
Ans.- 125 people. As, 96/125 = 76.8

8). See the first picture given below and tell what number should replace the question mark?
Ans.- Looking at lines of numbers from the top : 9×8 = 72; 72×8 = 576; 576×8 = 4608;

9). See the 2nd picture given below and tell the number of lines you see in the picture.
Ans.- 11 Lines.

10). See the first picture given below and tell what number should replace the question mark?
Ans.- 18 is the correct number. Multiply the bottom numbers to obtain the numbers at the top, albeit they are at the top of a different pyramid.