Name: SAT Math Help & School Math Mastery
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#35809

word problem

equations

hard

120 sec

Jamie can paint a room in 3 hours, and Mark can paint the same room in 5 hours. If Jamie and Mark work together to paint the room, and $t$ represents the number of hours they work together to complete one room, which equation correctly represents the portion of the room they complete together?

A.

$3 t + 5 t = 1$

B.

$\frac{t}{3} + \frac{t}{5} = 1$

C.

$\frac{1}{3} + \frac{1}{5} = t$

D.

$\frac{1}{3 t} + \frac{1}{5 t} = 1$