Question 42

Select the number from among the given options that can replace the question mark (?) in the following series.
48, 54, 45, 51, 42, 48, ?

Solution

48+6 = 54

54-9 = 45

45+6 = 51

51-9 = 42

42+6 = 48

48-9 = 39

So here '39' will come in place of the question mark.


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