1) Find the next number of he series 2,9,28,65.... A) 125 B) 128 C) 126 D) 132 Answer: Option CExplanation:$2= 1^{3}+1$ $8= 2^{3}+1$ $15= 3^{3}+1$ $24= 4^{3}+1$ So, next should be $5^{3}+1=126$