So here is the answer. In an hour, there are 4 15 minutes. Given that a day has 24 hours, we just simply multiply 4 by 24 and we get 96. Therefore, in a day, there are 96 15 minutes. A week contains 7 days. So we just multiply 96 by 7 and we get 672. Therefore, Jacque's clock strikes 672 times in a week. Hope this helps.
