Number Series 1This type of reasoning questions consists of a number series with one or more terms missing. The numbers in the series are arranged in a particular order. You are required to understand the order of numbers and find the missing numbers in the given series. 1) Which number should come next in the series, 48, 24, 12, ......?
Answer: B Explanation: It is a simple division series in which each number is onehalf of the previous number. We can also say that each number is divided by 2 to arrive at the next number; On dividing 48 by 2, we get 24 On dividing 24 by 2, we get 12 So, on dividing 12 by 2, we will get 6 (option B). 2) Look at the series, 46, 44, 40, 38, 34, _, which number should come next?
Answer: C Explanation: We can see that it is an alternating number subtraction series; first 2 is subtracted then 4 is subtracted and then 2 is subtracted again and so on; 46  2 = 44 44  4 = 40 40  2 = 38 38  4 = 34 34  2 = 32 (option C) 3) Which number would fill the empty space in the series; 4, 7, 12, 19, _, 39?
Answer: A Explanation: In this series, the difference between the consecutive numbers increases by 2; 7  4 = 3 Therefore, the next number would be 19 + 9 = 28 (option A) 4) Which number would replace the underline mark in the series 20, 40, 100, _, 820?
Answer: C Explanation: In this series, the difference between consecutive numbers is multiplied by 3; 20, 60, 180, 540. Therefore, the missing number would be 100 + 180 = 280 (option C) 5) What are the missing numbers in this series, 15, 20, 24, 15, 28, 32 15, _, _, 15?
Answer: B Explanation: This is a simple addition series in which the number "15" is interpolated as every third number. And, except 15, four is added to each number to arrive at the next number. Number Series 2 Number Series 3 Number Series 4
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