1) Find the next number of the series1,1,2,4,3,9,4,16,..... A) 15 B) 10 C) 5 D) 8 Answer: Option CExplanation:The given series two patternsPattern consisting of natural numbers which is 1,2,3,4....Pattern consisting of the square of the 1st pattern .We need to find the next number in the series which belongs to pattern 1 So number is 5.