2 2 votes A series $\text{S1}$ of five positive integers is such that the third term is half the first term and the fifth term is $20$ more than the first term. In series $\text{S2},$ the nth term defined as the difference between the $(n+1)$ term and the $n^{\text{th}}$ term of series $\text{S1}$, is an arithmetic progression with a common difference of $30$. Second term of $\text{S2}$ is $50$ $60$ $70$ $\text{None of these}$ Quantitative Aptitude cat2016 quantitative-aptitude arithmetic-progression + – go_editor 14.2k points 1.5k views answer comment Share Follow Print 0 reply Please log in or register to add a comment.