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    Study the given pattern carefully and select the number that can replace the question mark (?) in it.First row-56,60, 16​Second row-64,68,18​Third row
    Question

    Study the given pattern carefully and select the number that can replace the question mark (?) in it.
    First row-56,60, 16
    Second row-64,68,18
    Third row-72, ?,  20
    (NOTE: Operations should be performed on the whole numbers, without breaking down the number 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.)

    A.

    75

    B.

    74

    C.

    76

    D.

    78

    Correct option is C

    Given:
    First row-56,60, 16
    Second row-64,68,18
    Third row-72, ?,  20
    Logic: difference of 1st and 2nd is 4 and 4 is multiply by one less than 3rd number.
    First row-56,60,16
    56 , 4 × 15= 60  ,   15 +1 = 16 
    ​Second row-64,68,18
    8 × 8= 64, 4 × 17 = 68, 17+1 = 18 
    Third row-72, ?,  20
    8× 9 = 72, 4 × x =   , x+ 1 = 20 
    x+ 1 = 20 
    x =  20 -1 
    x = 19 
    Thus, correct option is (c).

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