Problem: A refrigerator is offered for sale at $250.00 less successive discounts of 20% and 15%. The sale price of the refrigerator is
Answer Choices:
A. 35% less than 250.00
B. 65% of 250.00
C. 77% of 250.00
D. 68% of 250.00
E. none of these
Solution:
D=D1​+D2​−D1​D2​,D=20+15−3=32.
∴S=250−(.32)(250)=(.68)(250),
that is, 68% of 250.