Question

On a sports day,in a rectangular field ABCD lines were drawn with chalk powder at a
distance of 1m each. 100 flower pots have been placed at a distance of 1m from each other
along AD as shown in the figure:

Anitha and Babitha started the final race. After 5 minutes Anitha covered 1/10th of the track
on the second line along AD, while babitha covered 1/5th of track on the 8th line along AD
after which Anitha fell down. Babitha then stopped and approached to help Anitha.

i. Considering A as the origin, what are the coordinates of A? (1)
a) (0,1) b) (1,0) c) (0,0) d)(-1,-1)

ii.What are the coordinates of B? (1)
a)(0,11) b)(11,0) c)(0,0) d)(1,11)

iii. What is the coordinate of the position of Anitha after 5minutes? (1)
a)(0,6) b)(2,6) c)(6,2) d)(2,0)

iv. What is the coordinate of the position of Babitha after 5minutes? (1)
a)(8,0) b)(5,8) c)(8,5) d)(0,5)

v. How much distance Babitha has to run to help Anitha? (1)
a) 37 units b)√37 units c) 6units d) 36units

Answer 1

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• Redox is a type of chemical reaction in which the oxidation states of atoms are changed. Redox reactions are characterized by the actual or formal transfer of electrons between chemical species, most often with one species undergoing oxidation while another species undergoes reduction.