A constituency is divided in four regions A, B, C and D. Two candidates X & Y contested the last election from that constituency. The adjoining graph gives the break up of voting in the four regions. Study the graph and answer the following questions.
Approximately how much percent of voters did not caste their votes?
Indian Space Research Organisation (ISRO) and Jet Propulsion Laboratory (JPL) of NASA are working on world’s most expensive earth-imaging satellite to use dual frequency. Its name is ______