question_answer

Bageera wrote few number patterns in his maths book. His maths teacher found some patterns incorrect. Can you figure out which pattern is incorrect in the following questions: A. 31, 51, 71, 91, 111, ...... B. 4, 9, 14, 19, 24, 29 . ...... C. 2, 4, 3, 9, 4, 15, ...... D. 1, 10, 100, 1000, 10000, 100000 .

A) C        

B) A

C) D                    

D) B

Correct Answer: A

Solution :

31, 51, 71, 91, 111, ...... Here, the rule is add 20. 31 + 20 = 51 + 20 = 71 + 20 = 91 + 20 = 111 Thus, the pattern is correct. B. 4, 9, 14, 19, 24, 29, ...... Here, the rule is add 5.                                                     4 + 5 = 9 + 5 = 14 + 5 = 19 + 5 = 24 and so on. Thus, the pattern is correct. C. 2, 4, 3, 9, 4, 15, ...  Here the rule is number then (numbernumber) and numbers moves from 2, 3, 4, 5,...... So the pattern should be 2, , 3, , 4, Thus, the pattern is incorrect. D. 1, 10, 100, 1000, 10000, 100000, ...... Here the rule is add a zero or "O". Thus, the pattern is correct. Therefore, the answer is option (a) C.