Any easier way to explain this. I get what they are trying to say till the point the combine both the questions.
Thanks
khurram
What is the value of the tenths digit of number x?
(1) The hundredths digit of x is 5
(2) Number x, rounded to the nearest tenth, is 54.5
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 one ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
To answer the question, let's recall that the tenths digit is the first digit to the right of the decimal point. Let’s evaluate each statement individually:
(1) INSUFFICIENT: This statement provides no information about the tenths digit.
(2) INSUFFICIENT: Since the value of the rounded number is 54.5, we know that the original tenths digit prior to rounding was either 4 (if it was rounded up) or 5 (if it stayed the same); however, we cannot answer the question with certainty.
(1) AND (2) SUFFICIENT: Since the hundredths digit of number x is 5, we know that when the number is rounded to the nearest tenth, the original tenths digit increases by 1. Therefore, the tenths digit of number x is one less than that of the rounded number: 5 – 1 = 4.
The correct answer is C.
Thanks
khurram
What is the value of the tenths digit of number x?
(1) The hundredths digit of x is 5
(2) Number x, rounded to the nearest tenth, is 54.5
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 one ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
To answer the question, let's recall that the tenths digit is the first digit to the right of the decimal point. Let’s evaluate each statement individually:
(1) INSUFFICIENT: This statement provides no information about the tenths digit.
(2) INSUFFICIENT: Since the value of the rounded number is 54.5, we know that the original tenths digit prior to rounding was either 4 (if it was rounded up) or 5 (if it stayed the same); however, we cannot answer the question with certainty.
(1) AND (2) SUFFICIENT: Since the hundredths digit of number x is 5, we know that when the number is rounded to the nearest tenth, the original tenths digit increases by 1. Therefore, the tenths digit of number x is one less than that of the rounded number: 5 – 1 = 4.
The correct answer is C.
