 Hello and welcome to the session. In this session we discussed the following question which says what number must be added to each term of the ratio 2 is to 5 so that it may become equal to 5 is to 6. Let's proceed with the solution now. We have to find the number that must be added to each term of the ratio 2 is to 5 and that ratio becomes equal to 5 is to 6. So we suppose let X be added to each term of the ratio 2 is to 5 then we get the ratio 2 plus X is to 5 plus X and this would be equal to the ratio 5 is to 6. This means we have 2 plus X upon 5 plus X equal to 5 upon 6. Now from this we need to find the value for X. So further cross multiplying we get 6 multiplied by 2 plus X the whole is equal to 5 multiplied by 5 plus X the whole. That is we have 12 plus 6 X is equal to 25 plus 5 X. Now further to find the value for X we will transpose 5 X to the left hand side and 12 to the right hand side. So we have 6 X minus 5 X is equal to 25 minus 12 or you can say we get X is equal to 13. So finally we get the value for X as 13. So we say 13 must be added to each term of the ratio 2 is to 5 so that it may become equal to 5 is to 6. So 13 is our final answer. This completes the session. Hope you have understood the solution of this question.