Which uses more energy, `a 250 W` TV set in `1 h` or a `1200 W` toaster in `10` minutes ?

Explanation

Energy used by `250 W` TV set in `1 h = (250 W)(1 h) = 250 Wh`
Energy used by `1200 W` toaster in `10 min(i.e., 1//6 h) = (1200 W)(1//6) h = 200 Wh`
Thus, `a 250 W` TV set uses more energy in `1 h` than a `1200 W` toaster in `10` minutes.