The problem states that Sle sold 20 Ropani of her land.
We are given the conversion factor: 1 Bigha = 13.31 Ropani.
The question asks for the remaining land in Ropani, but the initial amount of land is unknown.
Therefore, the remaining land cannot be determined without knowing the initial amount of land Sle had. The problem is unsolvable with the given information.
Explanation
Understanding the Problem We are given that Sle sold 20 Ropani of her land and that 1 Bigha is equal to 13.31 Ropani. The question asks us to find the remaining land in Ropani. However, we don't know how much land Sle had initially. Without this information, we cannot determine the remaining land after she sold 20 Ropani.
Identifying Missing Information Since we don't know the initial amount of land Sle had, we cannot calculate the remaining land. We need to know the initial amount of land in Ropani or Bigha to find the remaining land in Ropani.
Conclusion Therefore, it is impossible to determine the remaining land in Ropani with the given information.
Examples
Imagine you have a bag of candies, and you give away 20 candies to your friends. To know how many candies you have left, you need to know how many candies you had in the bag initially. Similarly, in this problem, we need to know the initial amount of land Sle had to find the remaining land after she sold 20 Ropani.