Question

x + y = 70 तथा x-y= 10 हो, तो
1/x+1/y=?
​

Answer 1

Answer:

7/12

Step-by-step explanation:

x+y=70

x-y=10

---------( adding)

2x=80

x= 40

so, y =30

To find :- 1/x + 1/y

=> 1/40 + 1/30

=> (40+30)/120

=> 70/120

=> 7/12

ans

Answer 2

Answer:

7/12 .............................