Question

the sum of 2 numbers is 40if the sum of the reciprocal is 2/5 find the number ​

Answer 1

Answer:

Step-by-step explanation:

let the no. are x and y

then x+y=40

and

1/x +1/y=2/5

x+y/xy=2/5

40/xy=2/5

xy=100

let the x and y are roots of a quadratic equation

then equation=x²-40x+100

                       =x=2.679,37.321