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»SukhMani«

*Nirbhau Nirvair*
Here, C= cat ; D= dog ; R= rat

c=10-r; D= 20-r
10-r+20-r=24
-2r+30= 24
-2r = -6
r=3

So, c+3=10 gives c=7
D+3 = 20 gives d =17

c+d+r =7+17+3= 27
 
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