If you can understand this math question please help me.?

this year, 75 percent of the graduating class had taken at least 8 math courses.Of the remaining class, 60 percent had taken 6 or 7 math cources. What percent of the remaing class took fewer than 6 math courses?(please explain)





A. o%


B. 10


C.15


D.30


E. 45

If you can understand this math question please help me.?
75% of the class took 8 math courses, that leaves 25% of the class.





60% of the 25% took 6 or 7.


.6 * .25 = .15 or 15% of the total class


15% + 75% = 90% of the class is accounted for.


The remaining is 10%.
Reply:If 75% took at least 8 courses, that leaves 25%. Of that 25%, 60% took at least 6 courses, leaving 40% of the 25%. So,


40% of 25% is .40 x .25 = .1, or 10%.

marigold