Correct Answer: B
Explanation:
Arithmetic Distance problem
A distance problem uses the formula : distance = rate X time.
To find the time, the formula would be rearranged as: time = distance / rate.
To solve this 6 rate problem, it is necessary to know the rate (given here as 70 kilometers per hour) and the distance.
- (1) If D is the distance Paula drove then
D >200 and D/70 > 200/70 = 2 6/7 so t > 2 6/7 and
t may or may not be less than 3;NOT sufficient.
- If D is the distance Paula drove then D<205 and D/70 < 205/70 = 2 13/14 so t < 2 13/14 <3;
SUFFICIENT.
The correct answer is B; statement 2 alone is sufficient.
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