Name: SAT Math Help & School Math Mastery
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#33983

distance

rate

medium

75 sec

Object X travels at a constant speed that is $k$ times the constant speed of object Y. Object Y travels a distance of $D$ miles in $T$ hours. Which expression represents the time, in hours, it takes object X to travel a distance of $2 D$ miles?

A.

$\frac{k T}{2}$

B.

$\frac{2 T}{k}$

C.

$\frac{T}{2 k}$

D.

$2 k T$