Solve:-
1= The sum of two no.s is 8 and the sum of their reciprocals is 8/15.Find the no.
2=The difference between 2 positive no.s x and y(x>y)is 4 and the difference between their reciprocals is 4/21.Find the no.s
3= The sum of the digits of a two digit no.7.If the digits are reversed, the new no.decreased by 2,equals twice the original no. Find the no.