Laila went for a $10 \mathrm{~km}$ run. She ran the first
$5 \mathrm{~km}$ in 30 minutes, then rested for 25 minutes. She then ran the rest of the way in 35 minutes.
Work out the value of $t$.

Answer

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Answer

$\boxed{90}$

Steps

Step 1 ：Laila ran the first 5 km in 30 minutes, rested for 25 minutes, and then ran the remaining 5 km in 35 minutes.

Step 2 ：To find the total time, we add the time spent running and resting: $30 + 25 + 35$

Step 3 ：$30 + 25 + 35 = 90$

Step 4 ：$\boxed{90}$