Question

576 441 323 225 144 ? find the series and explain how it be solve​

Answer 1

Answer:

Third option should be 324 which is 18^2. So then in place of question mark it is 81

Answer 2

Answer: The series is 576 441 323 225 144 81.

Step-by-step explanation:

1. 576 = 24 x 24.
2. 441 = 21 x 21.
3. 323 = 18 x 18.
4. 225 = 15 x 15.
5. 144 = 12 x 12.

• Observing the bold digits above, it is seen the series represents the square of multiples of 3 in descending order: 24, 21, 18, 15, 12.
• So the next multiple must be 9.
• The square of 9 is 9 x 9 =81.
• So the next number in the series is 81.

The answer is 81.

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