Question 401171
Let x that amount of  money then A will give to B
after this A will have Rs.{{{(80-x)}}} and B will have Rs {{{(40+x)}}}
B's money becomes twice the money that is left with A, so {{{(40+x)=2*(80-x)}}}
.
{{{(40+x)=2*(80-x)}}}
{{{40+x=160-2x}}}
{{{x+2x=160-40}}}
{{{3x=120}}}
{{{x=120/3}}}
{{{x=40}}}
A must give to B Rs.40