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

How do you 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…

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just take a calculator… 😉

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…

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Answer : 55

The series “1+2+3+4+5+6+7+8+9+10” 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

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How can you leave a room with two legs and return with six legs-Riddle answer

How can you leave a room with two legs and return with six legs-Riddle answer

Riddle answer: How can you leave a room with two legs and return with six legs?

Solution: There are multiple ways you could do this, and the main differences between the sets of legs you return with are whether they are attached to something or not. You could remove the legs from a table, a chair, a four-legged animal, insect, or other living creature (which, for the purposes of the question, the previous vitality of the creature is irrelevant), multiple two-legged creatures, you could return with some of the legs of a creature that has more than four, even. Alternatively, you could carry the same table or chair into the room with you, or lead two individual two-legged creatures, four creatures who were previously two-legged but for whatever reason had one of their two legs amputated

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Answer : 

Bring a chair with you when you return to the room.

You have two legs and a chair has four legs. the total legs will be six.!!

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Mathematical puzzle answer: what is () + () + () = 30 using 1,3,5,7,9,11,13,15

Mathematical puzzle answer: what is () + () + () = 30 using 1,3,5,7,9,11,13,15

Puzzle answer: ◻ ➕ ◻=30, Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15) U can also repeat the numbers hard puzzle which is asked in the IAS Exam question- Gaurav Agarwal’s.

how did this riddle become so popular?

We have explained 3 possible solutions by using numbers 1, 3, 5, 7, 9, 11, 13, 15 and with the condition, we can repeat the numbers.

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Answer : 

13+11+3! =30

here 3!=3x2x1=6

13+11+6=30

click here to check other 2 solutions

 

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