Problem: With a rancher is to buy steers at each and cows at each. If the number of steers and the number of cows are both positive integers, then:
Answer Choices:
A. this problem has no solution
B. there are two solutions with s exceeding c
C. there are two solutions with exceeding
D. there is one solution with exceeding
E. there is one solution with exceeding
Solution:
The only solution in positive integers is ,