The following Pictograph gives us the number of hours required to finish the course of a subject before an exam. From this, you analyse that the subject that takes the most number of hours is _____ and the subject that takes the least number of hours is _____.
Mathematics
It is mentioned in the pictograph that 1 clock is equal to 2 hrs. So, If you count the number of hours, it is as:
English5 × 2 = 10 hoursMathematics7 × 2 = 14 hoursPhysics4 × 2 = 8 hoursChemistry3 × 2 = 6 hoursBiology4 × 2 = 8 hours
Therefore, Mathematics takes the most and Chemistry takes the least number of hours.