Answer :
My solution
cookie - C
Tin -T
C+T = 3-->(1)
1/4C+T= 1.2 --(2)
(1) - (2)
3/4 C = 1.8
1/4 C = 1.8/3 = 0.6
Therefore T = 1.2 - 0.6 = 0.6
Weight of tin = 0.6 //
cookie - C
Tin -T
C+T = 3-->(1)
1/4C+T= 1.2 --(2)
(1) - (2)
3/4 C = 1.8
1/4 C = 1.8/3 = 0.6
Therefore T = 1.2 - 0.6 = 0.6
Weight of tin = 0.6 //