The given sequence is 2, 4, 6, 8, 10. To find the general term of this sequence, it’s essential to identify the pattern within the numbers. First, observe the numbers: each term increases by a value of 2. This is a clear indication that we are dealing with an arithmetic sequence. In an arithmetic sequence, … Read more

At what time will traffic lights at three different crossings, changing every 48 seconds, 72 seconds, and 108 seconds respectively, change simultaneously again?

To find out when the traffic lights will change simultaneously again, we need to calculate the least common multiple (LCM) of the three time intervals: 48 seconds, 72 seconds, and 108 seconds. The first step is to determine the prime factorization of each time interval: 48 = 24 × 31 72 = 23 × 32 … Read more