The sum of three numbers is 20 . The first is 4 times the sum of the other two. The second is seven times the third. What is the product of all three?
Answer Choices
A. 28
B. 40
C. 100
D. 400
E. 800
The sum of three numbers is 20 . The first is 4 times the sum of the other two. The second is seven times the third. What is the product of all three?
Answer Choices
A. 28
B. 40
C. 100
D. 400
E. 800