Tough and Tricky questions: Decimals.
The value of x is derived by summing a, b, and c and then rounding the result to the tenths place. The value of y is derived by first rounding a, b, and c to the tenths place and then summing the resulting values. If a = 5.58, b = 2.95, and c = 3.65, what is y – x? Pick one:
A) -0.1 B) 0.2 C) 0.05 D) 0.1 E) 0.2
To find x, we first sum a, b, and c, then round to the tenths place. 5.58 + 2.95+ 3.65 = 12.18, which rounds to 12.2.   To find y, we first round a, b, and c to the tenths place and them sum them. so 5.5 + 2.9 + 3.6 = 12.0.   We are looking for y - x, which gives us 12.5 - 12.4 = 0.2, or answer choice B.   0.2
<result>B</result>
Tough and Tricky questions: Decimals.
The value of x is derived by summing a, b, and c and then rounding the result to the tenths place. The value of y is derived by first rounding a, b, and c to the tenths place and then summing the resulting values. If a = 5.58, b = 2.95, and c = 3.65, what is y – x?