Answer:
The shopkeeper sold the jacket at $210.
Step-by-step explanation:
A shopkeeper marks his goods at 40% above cost (the price he pays for the goods) and then offers a 25% discount.
So, when a jacket costs the shopkeeper $200, so first we will add 40% to it and then give a discount of 25%.
40% of 200 =
Price will become =
dollars
Now he will give 25% discount on it;
Final price will become: 
= $210
Hence, The shopkeeper sold the jacket at $210.