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LR Exam  >  LR Questions  >  3 : 729 :: 5 : ?a)7776b)1296c)3125d)15625e)No... Start Learning for Free
3 : 729 :: 5 : ?
  • a)
    7776
  • b)
    1296
  • c)
    3125
  • d)
    15625
  • e)
    None of these
Correct answer is option 'D'. Can you explain this answer?
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3 : 729 :: 5 : ?a)7776b)1296c)3125d)15625e)None of theseCorrect answer...
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3 : 729 :: 5 : ?a)7776b)1296c)3125d)15625e)None of theseCorrect answer...
Finding the Missing Number in the Series

Given the series 3:729::5:?, we need to find the missing number. The given series follows a pattern, which we need to identify to solve the problem.

Identifying the Pattern

In the given series, the first number (3) is the cube of 3, i.e., 3^3 = 27. Similarly, the second number (729) is the cube of 9, i.e., 9^3 = 729. Therefore, the pattern followed by the series is that each number is the cube of the preceding number.

Using the Pattern to Find the Missing Number

Using the pattern, we can find the missing number in the series. We need to find the cube of the last number (5) to get the missing number.

5^3 = 125 x 5 = 625 x 2 = 1250 x 5 = 6250

Therefore, the missing number in the series is 6250.

Final Answer

Hence, the correct answer is option D, i.e., 15625.
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3 : 729 :: 5 : ?a)7776b)1296c)3125d)15625e)None of theseCorrect answer...
3×3=9×9×9:729::5×5=25×25×25:15625
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