Number Series
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In "Number Series" question, a number series is given with one term missing. Choose the correct alternative that will same pattern and replace the question mark in the given series.
The pattern is + 1008. So, missing term = 6848 + 1008 = 7856.
Each term in the series, except the first two terms, is the product of the preceding two terms.
The pattern is + 1, × 3, + 1, × 3, + 1, × 3, + 1, ........ So, missing term = 67 × 3 = 201.
Each term in the series is obtained by adding 1 to the square of the preceding term. So, missing term = (101)² + 1 = 10202.
The terms of the given series are (2² - 1 ), (4² - 1 ),......, (8² - 1), (10² - 1), (12² - 1). So missing term = (6² - 1) = (36 - 1) = 35.
The pattern is -45, -35, -25, ...... So missing term is = 20 - 15 = 5.
The series consists of squares and cubes of consecutive natural numbers i.e. 1², 1³, 2². 2³, 3², 3³. 4². ....... So missing term = 4³ = 64.
Each number of the series is 15 multiplied by a prime number i.e. 15 × 11. 15 × 13. 15 × 17, 15 × 19, 15 × 23. ..... So, missing term = 15 × 29 = 435.
The pattern is - 4, -9, -16, ........i. e. -2², -3², -4², ....... So, missing pattern = 169 - 5² = 169 - 25 = 144.
Each number in the series is one more than twice the preceding number. So, missing term = (15 × 2) + 1 = 31.