In this page ACT practice question paper2 we are going to see some practice questions. You can try to solve each questions on your own and check the answer which is in the form of quiz. If you find it difficult to solve any problem you can just click the link "solution" to get detailed step by step explanation that will help you to understand the problem much better.
The traffic lights at three different road crossing change after every 48 seconds, 72 seconds and 108 seconds. If they all change simultaneously at 8:20:00 hours then at what time they will again change simultaneously?