TO DETERMINE THE VALUE OF 10 – X, WE MUST DETERMINE THE EXACT VALU...
15. To determine the value of 10 – x, we must determine the exact
value of x. To determine the value of x, we must find out what digits
a and b represent. Thus, the question can be rephrased: What is a
and what is b?
(1) INSUFFICIENT: This tells us that x rounded to the nearest
hundredth must be 1.44. This means that a, the hundredths
digit, might be either 3 (if the hundredths digit was rounded up to