A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. Narendra Modi, Manmohan Singh, Atal Bihari Vajpayee, ?
Vishnu spends Rs. 5000 in buying 12 tables and some chairs. The cost of one table is Rs. 50 and that of one chair is Rs. 40. What is the ratio of the numbers of tables purchased?
National Organ Donation Day is annually observed across India on November 27 to recognize the selfless contribution made by deceased donors to healthcare.