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Which of the following numbers will replace the question mark (?) in the given series?100, 90, 81, 73, 66, 60, 55, ?
Question

Which of the following numbers will replace the question mark (?) in the given series?
100, 90, 81, 73, 66, 60, 55, ?

A.

53

B.

50

C.

52

D.

51

Correct option is D

Given: 100, 90, 81, 73, 66, 60, 55, ?
Logic: Difference of two constitutive number is decreasing from 10,9,8,7,6,5,4
Explanation:
100-10=90
90-9=81
81-8=73
73-7=66
66-6=60
60-5=55
Similarly,
55-4=?
?=51
Thus, Option D is the correct answer.

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