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Question

Given two identical sequences: [4000, 400.0, 120.0, 60.0, 42.0, 37.8] and [1000, A, B, C, D, E]. What is the entry at the place of C for the second sequence?

The correct answer is
15

The question provides two sequences and asks us to identify a value in the second sequence at the position of 'C'. The two sequences given are:

  • Sequence 1: [4000, 400.0, 120.0, 60.0, 42.0, 37.8]
  • Sequence 2: [1000, A, B, C, D, E]

We are required to find the value of 'C' in the second sequence.

Let's examine the sequences to determine any pattern or relationship:

  1. In Sequence 1, notice the pattern where each term is dividing the previous term by given numbers:
    • 4000 divided by 10 gives us 400.0
    • 400.0 divided by 3.33 gives us approximately 120.1, but consider it as an example of division
    • 120.0 divided by 2 gives 60.0
    • 60.0 divided by 1.428 gives approximately 42.0, but consider rounding to get the exact figure
  2. Similarly, apply the pattern to Sequence 2:
    • 1000 divided by 10 gives 100
    • 100 divided by 3.33 gives approximately 30.03
    • 30 divided by 2 gives us 15

From the observed operations on Sequence 1, "C" in the second sequence corresponds to "60.0" in Sequence 1 divided by the factor 2, leading to a result of approximately 15 for the correct entry of 'C'.

Thus, the value at position 'C' in Sequence 2 is 15.

Therefore, the correct answer is Option 3: 15.

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Important Questions from Number Series

  1. Select the number from among the given options that can replace the question mark (?) in the following series.

    37, 52, 74, 104, 143, ?

  2. Select the number that can replace the question mark (?) in the following series.

    17, 19, 22, 27, 34, 45, 58,?
  3. Select the number from among the given options that can replace the question mark (?) in the following series.

    10, 14, 31, 35, 73, 77, ?

  4. Select the number from among the given options that can replace the question mark (?) in the following series.

    215, 231, 256, 292, ?

  5. Select the number from among the given options that can replace the question mark (?) in the following series.

    6, 6, 8, 24, 28, 140, ?

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