Final answer:
To make a profit of 30 Rs, the man should sell the article for 250 Rs. Therefore, the correct option is A.
Step-by-step explanation:
To find the selling price to make a profit of 30 Rs, we need to calculate the cost price of the article first.
Given that selling price = 240 Rs and profit = 20 Rs, we can calculate the cost price using the formula:
Cost Price = Selling Price - Profit
Cost Price = 240 Rs - 20 Rs = 220 Rs
To make a profit of 30 Rs, we can use the formula:
Selling Price = Cost Price + Profit
Selling Price = 220 Rs + 30 Rs = 250 Rs
Therefore, the man should sell the article for 250 Rs to make a profit of 30 Rs.