# Answer to Question #22989 in Abstract Algebra for raghav

Question #22989

Two consecutive numbers(from 0 to 9) are given to A and B.if A is asked about B's number he says"i don't know B's number", then B is asked about A's number, he says "i don't know A's number". Then A says"i know B's number".Find A's and B's number.

Expert's answer

The equation of reaction is:

BaCl2+Na2SO4=BaSO4+2NaCl

BaSO4 is wait insoluble compound.

BaCl2+Na2SO4=BaSO4+2NaCl

BaSO4 is wait insoluble compound.

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