Answer:
$13.5
Explanation:
Let the original price of hat be X
cost of hat after 40% off = x-(40/100)*x
= 0.6x
cost of shirt after 40% off = 28-(40/100)*28
= 16.8
Now
total paid = total expenditure
24.90 = 16.8+0.6x
0.6x= 8.1
x = 13.5
Hence
the original price of hat = $13.5