Tag: math & puzzles

Questions Related to math & puzzles

  1. 5210

  2. 5213

  3. 5215

  4. 5218


Correct Option: B

1,2,9,64,625,?

  1. 189

  2. 625

  3. 7776

  4. 149


Correct Option: C

AI Explanation

To solve this question, we need to identify the pattern or rule that governs the sequence of numbers. Let's analyze the given sequence:

1, 2, 9, 64, 625, ?

Looking closely, we can see that each number in the sequence is obtained by raising the previous number to a certain power:

2 = 1^2 9 = 2^2 64 = 4^3 625 = 5^4

Therefore, to find the next number in the sequence, we need to raise 5 to the power of 5:

5^5 = 3125

So, the missing number in the sequence is 3125.

Now, let's go through each option to determine the correct answer:

Option A) 189 - This option is incorrect because it does not follow the pattern observed in the sequence. Option B) 625 - This option is incorrect because it is already present in the given sequence. Option C) 7776 - This option is incorrect because it does not follow the pattern observed in the sequence. Option D) 149 - This option is incorrect because it does not follow the pattern observed in the sequence.

The correct answer is option C) 7776.

1^2+2^2+3^2=?

  1. n(n+1)/2

  2. n(n+1)(2n+1)/6

  3. [n(n+1)]^2

  4. all of the above


Correct Option: B
  1. (a+b+c)(a^2+b^2+c^2-ab-bc-ca)

  2. (a^2+b^2+c^2-ab-bc-ca)

  3. (a^2+b^2+c^2+ab+bc+ca)

  4. none of these


Correct Option: A

(a+b+c)^2

  1. (a^2+b^2+c^2)

  2. (a^2+b^2+c^2+ab+bc+ca)

  3. all of these

  4. (a^2+b^2+c^2+2ab+2bc+2ca)


Correct Option: C