Question 32

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

72, 66, 63, 57, 54, 48, ?

Solution

In given series there is a difference between 6 and 3 in whole series $$72,66,63,57,54,48,?$$

$$72-66=\ 6$$
$$66-63=\ 3$$

$$63-57=\ 6$$

$$57-54=\ 3$$

$$54-48=\ 6$$

$$48-3=\ 45$$
Hence option D is the correct answer

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