Answer:
New price of the stock = $42
Step-by-step explanation:
Given
Price of stock at the start of the day = $35
Increased by 20% by the end of the day.
To find the new price of the stock which is the price of the stock at the end of the day.
Solution:
Price at start =$35
Increase Percent at the end = 20%
Amount of increase in price = 
∴ New price at the end of the day = 