Suppose the weights of 1-year-old boys are approximately normally distributed, wild a mean of 22.8 lbs and a standard deviation of about 2.15. If we randomly select o
I-vear-old boy, what is the probability that he'll weigh more than 20 pounds

Regular selling price (price before discount) 100%.

Price after trade discount of 15% is 85% of regular selling price..

Price after trade discount reduced to 10% is 90% of regular selling price.

By reducing the trade discount from 15% to 10% meant increasing the selling price by 5% of the selling price before applying the trade discount.