Question

List-I	List-II
A. Time taken by the Earth to orbit the sun	1. Aryabhatta
B. Calculation of the value of π (pi)	2. Bhaskaracharya
C. Invention of the digit Zero	3. Budhayana
D. The game of snakes & ladders	4. Gyanadev

Codes: 

    A   B  C  D 

(a) 2  4 1 3 

(b) 1  3  2 4

 (c) 2  3 1  4 

(d) 1  4  2 3

Answer 1

(c) The correct match list is: 

Aryabhatta — Invention of the digit zero. 

Bhaskaracharya — Time taken by the earth to orbit the sun. 

Budhayana — Calculation of the value of π (Pi) 

Gyandeva — The game of snakes and ladders

Zero was invented in India by Indian mathematicians dating as early as 5^th century. They widely used it in calculations, astronomy and astrology. Zero was spread by Arabians to the Europe and thereon it was spread all over. The famous Hindu mathematician, Bhaskaracharya, in his treatise Surya Siddhanta, calculated the time taken for the earth to orbit the sun to nine decimal places (365.258756484 days). Bhaskaracharya rightly calculated the time taken by the earth to orbit the sun hundreds of years before the astronomer Smart. His calculations was – Time taken by earth to orbit the sun (5th century): 365.258756484 days. The value of Pi was first calculated by Budhayana, and he explained the concept of what is known as the Pythagorean Theorem. The game of snakes and ladders is most popular in almost all houses and across all countries of the world. The credit for the game should go to the 13^th century Marathi saint poet composer Gyanadev, Jnanadeva , also known as Jnanashwar. When the saint invented the game it was called Mokshapat.