आरआरबी टेक्नीशियन 2013 प्रश्न 100
प्रश्न: निम्नलिखित संख्या श्रृंखला में प्रश्न चिह्न (?) के स्थान पर क्या आना चाहिए? 3 7 13 ? 31 43
विकल्प:
A) 18
B) 19
C) 23
D) 21
Show Answer
उत्तर:
सही उत्तर: D
BETA
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