ibps-csa 2014 · Question 132 of 196

8, 9.4, 12.2, 17.8, 29, ?

Number Series

A53.6
B51.4Correct
C52.1
D48.6
E49.8

Answer: B. 51.4

Explanation

The difference between consecutive terms is doubling. For example, 9.4 - 8 = 1.4 12.2 - 9.4 = 2.8 17.8 - 12.2 = 5.6 29 - 17.8 = 11.2 Hence, the term to come next is 29 + 11.2*2 = 51.4

Source: IBPS Clerk CWE paper held 14-12-2014 — solved-paper book excerpt (CollegeDunia) with publisher answer key; sections cross-verified against BankingAdda / FreshersNow / CollegeDekho 14-12-2014 papers · memory-based

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