"But nobody should have to spend more than 10 to 15 hours to increase his or her score by 100 points."

He spends on average four to five hours per day, seven days a week.

He spends an average of six to seven hours a week recording.

They spent one to two hours at the base.

He spent between ten to sixteen hours a day writing stories.

"We're spending six to eight hours sleeping every night, and I realized it is kind of silly that we don't spend more for our mattress."

This coming from someone who also spent way to many hours playing splitscreen twisted metal 2.

He estimated that most puzzlers spend one to two hours on the Sunday version.

Generally, a salesman will spend one to three hours with a couple of dozen customers a week.

They'd been spending nine to ten hours a day, five days a week, in a car together.