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Number triads (a, b, c): the third is a fixed linear combination of the first two (like 2a + b or a - 3b)

This type of question, asked 5 times: 17 Jul 2023 S4, 19 Jul 2023 S3, 21 Jul 2023 S1, 24 Jul 2023 S4, 25 Jul 2023 S1. All 6 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    17 Jul 2023 S4

    15
    Study the given pattern carefully and select the number that can replace the question mark (?) in it. (14, 10, 9) (6, 8, 2) (8, 4, ?) (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)

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  2. Question 2

    17 Jul 2023 S4

    2
    Study the given pattern carefully and select the number that can replace the question mark (?) in it. (2, 1, 5) (5, 12, 22) (6, 2, ?) (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)

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  3. Question 3

    19 Jul 2023 S3

    1
    Study the given pattern carefully and select the number that can replace the question mark (?) in it. (16, 4, 4) (30, 5, 15) (8, 2, ?) (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)

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  4. Question 4

    21 Jul 2023 S1

    12
    Study the given pattern carefully and select the number that can replace the question mark (?) in it. (3, 5, 6) (5, 12, 15) (9, 4, ?) (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)

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  5. Question 5

    24 Jul 2023 S4

    7
    Study the given pattern carefully and select the number that can replace the question mark (?) in it. (6, 8,11) (2, 1, 2) (6, 7, ?) (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)

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  6. Question 6

    25 Jul 2023 S1

    18
    Study the given pattern carefully and select the number that can replace the question mark (?) in it. First row: 16, 15, 35 Second row: 12, 18, 33 Third row: 8, 17, ? (NOTE: Operations should be performed on the whole numbers, without breaking down the number into its constituent digits. For example, 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.)

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