Answer: The amount of money spent on t-shirt is $140.
Explanation:
Let the cost of t-shirt be 'x'.
Number of dollars Mr. Green has = 200 dollars
Number of dollars Mrs. Green has = 180 dollars
After the purchasing the same shirt, the ratio of remaining number of dollars is 3:2.
According to question,

Hence, the amount of money spent on t-shirt is $140.