Answer
t = 208 s
or
t = 3 min 28 s
Work Step by Step
$3 \space min = 180 \space s$
$$(180 + 43.13) \space s = 223.13 \space s$$
$$\frac{1609 \space m}{223.13 \space s} = 7.21 \space m/s$$
$$1500 \space m \times \frac{1 \space s}{7.21 \space m} = 208 \space s$$ $$208 \space s = 3 \space min \space 28 \space s$$