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Number triad or chain: each number made from the previous one by a fixed operation

This type of question, asked 8 times: 18 Jul 2023 S1, 21 Jul 2023 S2, 21 Jul 2023 S3, 11 Sep 2024 S2, 12 Sep 2024 S3, 13 Sep 2024 S2, 13 Sep 2024 S3, 26 Sep 2024 S2. All 8 questions below, oldest first.

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  1. Question 1

    18 Jul 2023 S1

    5
    Select the set in which the numbers are related in the same way as are the numbers of the given sets. (NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (16, 32, 54) (29, 58, 80)

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  2. Question 2

    21 Jul 2023 S2

    17
    Select the set in which the numbers are related in the same way as are the numbers of the given sets. (NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /Subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed) (5, 30, 60) (11, 66, 132)

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  3. Question 3

    21 Jul 2023 S3

    8
    Select the set in which the numbers are related in the same way as are the numbers of the given set. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (15, 45, 90) (8, 24, 48)

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  4. Question 4

    11 Sep 2024 S2

    17
    Select the triad in which the numbers are related to each other in the same way as the numbers in the following triads. 8-17-35 23-47-95 (NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /deleting /multiplying etc., to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

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  5. Question 5

    12 Sep 2024 S3

    21
    Select the set in which the numbers are related in the same way as are the numbers of the following set. (34, 17, 27) (42, 21, 31) (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/deleting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

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  6. Question 6

    13 Sep 2024 S2

    2
    Select the triad in which the numbers are related to each other in the same way as the numbers in the following triads. 16-40-100 8-20-50 (NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /deleting /multiplying etc., to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

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  7. Question 7

    13 Sep 2024 S3

    16
    Two sets of numbers are given below. In each set of numbers, certain mathematical operation(s) on the first number result(s) in the second number. Similarly, certain mathematical operation(s) on the second number result(s) in the third number and so on. Which of the given options follows the same set of operations as in the given sets? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) 9 – 27 – 31 – 36; 10 – 30 – 34 – 39

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  8. Question 8

    26 Sep 2024 S2

    19
    Two sets of numbers are given below. In each set of numbers, certain mathematical operation(s) on the first number result(s) in the second number. Similarly, certain mathematical operation(s) on the second number result(s) in the third number and so on. Which of the given options follows the same set of operations as in the given sets? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) 48 – 50 – 46 – 52; 37 – 39 – 35 – 41

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