In a college five different subjects viz. Physics Chemistry Botany Zoology and Mathematics are taught on five different days of the same week starting from Monday and ending on Friday. Is Chemistry taught on Wednesday ?_ I. Two subjects are taught between Zoology and Mathematics. Mathematics is taught before Zoology. Chemistry is taught on the day immediately next to the day when Physics is taught. Botany is not taught on Friday. II. Three lectures are scheduled between the lectures of Botany and Zoology. Mathematics is taught immediately before Physics.

Data sufficiency questions are designed to check your ability to analyse & categorise information based on underlying concepts rather than calculations. So you should try to observe -  analyse and to find linkages between various statements rather soing lengthy calculations.