Is the hundredths digit of the decimal d greater than 5 ?
(1) The tenths digit of 10d is 7.
(2) The thousandths digit of ~$\frac{d}{10}$~ is 7.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
百位:hundreds
十位:tens
个位:units
十分位:tenths
百分位:hundredths
千分位:thousandths
条件1,10d的十分位是7,10d的十分位就是d的百分位,7>5,所以成分
条件2,d/10的千分位是7,d/10的千分位就是d的百分位,7>5,所以充分
选D
Note:
1234.567
1 - THOUSANDS
2 - HUNDREDS
3 - TENS
4 - UNITS
. - decimal point
5 - TENTHS
6 - HUNDREDTHS
7 - THOUSANDTHS
1234.567
1 - THOUSANDS
2 - HUNDREDS
3 - TENS
4 - UNITS
. - decimal point
5 - TENTHS
6 - HUNDREDTHS
7 - THOUSANDTHS
题目没看仔细,我也错了。登录 或 注册 后可以参加讨论
Note:
1234.567
1 - THOUSANDS
2 - HUNDREDS
3 - TENS
4 - UNITS
. - decimal point
5 - TENTHS
6 - HUNDREDTHS
7 - THOUSANDTHS
我也无语了。。。。。。
哇归纳的好棒!登录 或 注册 后可以参加讨论