小雪和小敏的藏书册数比是7:5,如果小雪送65本书给小敏,那他们之间的藏书册数比是3:4,那么小敏原来藏书是多少册?()
2023-06-16
A. 175
B. 245
C. 420
D. 180
参考答案:A
B. 245
C. 420
D. 180
参考答案:A
根据题意可知,后来小敏的藏书册数应该是4的倍数,即小敏原来的藏书册数加65后能被4整除,选项中只有A符合。故答案为A。
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