My son-in-law bought a new mountain bike that was on sale for 20% off.
However, if he went to the store at 6:00 AM on July 4, he would receive an additional
20% off the sale price.
Solution to the Problem:
The actual discount is 36%.
Let x = original price.
After the first 20% discount, the cost of the bike is x - .20x = .8x.
After the second 20% discount, the cost is .8x - .20(.8x) = .64x.
So, the discount is 100 - 64 = 36 percent.
Correctly solved by:
1. John Funk | Ventura, California |
2. K. Sengupta | Calcutta, INDIA |
3. James Alarie | Flint, Michigan |
4. David & Judy Dixon | Bennettsville, South Carolina |
5. Tom Robb | Winchester, Virginia |
6. Les Walker | Ventura, California |