How do you calculate 1+2+3+4+5+6+7+8+9+10 quickly?

Home Ā» Puzzles Ā» How do you calculate 1+2+3+4+5+6+7+8+9+10 quickly?
How to Calculate 1+2+3+4+5+6+7+8+9+10 quickly?

Puzzle answer: How can you lift an elephant with one hand?

I’ll tell you one trick…which will give you an answer within 1 second…

;

;

 

just take a calculator… šŸ˜‰

Ha ha ha…Just kidding!!!

Already there are some brilliant ways people have solved this problem…but I’ll tell you how did I approach when I saw this problem at very first glance…

Show answer

Answer : 55

The series ā€œ1+2+3+4+5+6+7+8+9+10ā€ can be considered as the sum of the first 10 Natural numbers.

The generalized formula to find the sum of first N natural numbers is

(N * (N + 1) ) /2

For the series given, the value of N is 10

So substituting value of N in the generalized formula

( 10 * (10 + 1) ) / 2

= (10 * 11 ) / 2

= 110/2

Correct answer = 55

Share your answers and thoughts in the comments box below

Knowledge increases by sharing šŸ™‚

You may like!

What has a big mouth, yet never speaks? Riddle answer

What has a big mouth, yet never speaks? Riddle answer

What has a big mouth, yet never speaks? - Riddle with answer Answer: Jar   The liquid that flows from your nose when you catch cold is called Tupeal in Tamil language. Share your answers and thoughts in the comments box belowĀ Solve : Has a tongue, but never...

read more
I am always running but never get tired or hot. What am I?

I am always running but never get tired or hot. What am I?

I am always running but never get tired or hot. What am I? - riddle answer Answer: The RiverShare your answers and thoughts in the comments box belowĀ Solve :Ā If there are 3 Apples and You Take Away 2 of them. How Many Do You Have?Knowledge increases by sharing šŸ™‚

read more