Question

The sum of 2 numbers is 10.
Their Product is 20.
Find the sum of the reciprocals of the numbers.
If given wrong answer I will delete answer.​

Answer 1

Answer:

let the numbers be X and Y

ATQ

X+Y=10. (1)

XY=20. (2)

then

1/X+1/Y=X+Y/XY

from (1)&(2)

we get

1/X+1/Y =1/2=0.5