245.已知k>m>n, and k, m, n d 是连续的整数,他们的和可以被10整除,问k=? (1) m是7的倍数 (2) n是质数
Only possible way is that the final digit are 9,0,1 for continuous number. So either of them is not sufficient alone. Then, it depends on the range of k. For the current setting, I think answer is E.