The sub-divided bar diagram given below depicts HS students of a school for three years. Study the diagram and answer the questions.
In which year the school had the best result for HS in respect of percentage of pass candidates?
d) The percentage of pass candidates are same for the three years
The radii of two solid right circular cylinders are 4 cm and 3 cm respectively and their heights are (h + 1) cm and (2h + 1) cm respectively. If the areas of the while surface of the two cylinders are equal, then the ratio of their volumes is
d) 80 : 81