Answer
$385,000\ W,365,000\ W,20,000\ W$
Work Step by Step
The upper limit is the measurement + tolerance, that is,
$$
375,000 +10,000 =385,000\ W
.$$
The lower limit is the measurement - tolerance, that is,
$$
375,000 -10,000 =365,000\ W
.$$
The tolerance interval = upper limit-lower limit, that is,
$$
385,000\ W-365,000\ W=20,000\ W
.$$
