Question

What should come in place of question mark ‘?’ in the following number series?

45      45.5        47         49.5        53         ?

A 57.5 Correct Answer Incorrect Answer
B 56.5 Correct Answer Incorrect Answer
C 58 Correct Answer Incorrect Answer
D 55 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

45 + 0.5 = 45.5 45.5 + 1.5 = 47 47 + 2.5 = 49.5 49.5 + 3.5 = 53 53 + 4.5 =  57.5

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