Answer:
The weight on planet x is 60 N
Explanation:
It is given that,
Weight of an object on earth, W = 98 N
Value of acceleration due to gravity, 
Weight, 

Since, mass of an object remains same everywhere.
If the value of acceleration due to gravity on planet x is, 
So, weight on the planet x is,


W = 60 N
So, the weight on planet x is 60 N. Hence, this is the required solution.