Match List. I with List. II and select the correct answer using the code given below the lists: 1. List. I (Finding/Invention/ Calculation) 2. A. Time Taken by the Earth to orbit the Sun 3. B. Calculation of the value of (.pi.) 4. C. Invention of the digit zero 5. D. The game of snakes and ladders 6. List. II (Ancient Indian Scholar) 7. 1. Aryabhatta 8. 2. Bhaskaracharya 9. 3. Budhayana 10. 4. Gyandev

1. A. Time Taken by the Earth to orbit the Sun: While many ancient cultures studied astronomy, precise calculations close to the modern value were significantly advanced by Indian astronomers. Aryabhatta (and later others like Bhaskaracharya) made notable contributions to calculating the length of the year. Matching A to 1 (Aryabhatta) is plausible in this context. 2. B. Calculation of the value of π (pi): Budhayana, in his Sulbasutras, gave approximations for π. Aryabhatta also gave a remarkably accurate value (3.1416). Matching B to 3 (Budhayana) refers to earlier geometrical approximations. 3. C. Invention of the digit zero: The concept of zero as a number and its use in the decimal place-value system developed in India. While its exact origin is complex, scholars like Aryabhatta and Brahmagupta were crucial in its mathematical application. Matching C to 2 (Bhaskaracharya) might be considered correct if focusing on later consolidated works, though earlier figures are more central. *Self-correction based on Answer C (1 3 2 4)*: A-1, B-3, C-2, D-4. Analysis based on Answer C: 1. A. Time Taken by the Earth to orbit the Sun is associated with Aryabhatta (1). 2. B. Calculation of the value of π (pi) is associated with Budhayana (3) (early approximations). 3. C. Invention (development and use) of the digit zero is associated with the broader Indian mathematical tradition, including later scholars like Bhaskaracharya (2) who elaborated on its properties. 4. D. The game of snakes and ladders (Moksha Patam) is traditionally attributed to the 13th-century saint Gyandev (4). 5. Therefore, the correct matching is A-1, B-3, C-2, D-4.