Question

a+b=10. 1/a+1/b=2.4. what is a and b?

Answer 1

Now, (1/a+1/b)=(b+a)/ab.

This is found by cross multiplication for finding L.C.M.

As we know (a+b)=(b+a)=10.

And;

a*b=20.

Therefore (a+b)/a*b=10/20.

Thus, the final answer is 1/2=0.5 .