7th Grade Challenging Math

746) Calculate
747) Calculate
748) The 7^{th}
graders' average height in Walnut Creek School for the girls is 54 inches. The
average height for the boys is 55 inches. If the ratio of girls to boys is 7 to
6, what is the average height of all the students?
749) A 7th grade class
took a science test. The average score for the boys is 81 points.
The average score for the girls is 82 points. If the ratio of girls to
boys in the class is 4 to 5, what is the average test score for all of the
students?
750) At Jefferson
School, both 6th grade and 7th grade classes took a math test. The average score
for the 6th grade is 80 and for the 7th grade is 90. If there are twice as many
students in the 7th grade as that in the 6th grade, what is the average test
score for both grades together?
More challenging math problems for seventh grade:
15 610 1115 1620 2125 2630 3135
3640 4145 4650
5160
6170
7180
8190
