Answers

2015-09-26T10:59:42+05:30
Given:
  d is the HCF of 30 and 72
 HCF of 30 n 72:
   30=2 x 5 x 3 
   72=2 x 2 x 2 x 3 x 3
HCF =6
thus d=6
d=30x+72y
6=6(5x+12y)
=> 5x+12y=1
5x= 1-12y
1-12y+12y-1=0
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