Multiple & Factor( Week 24 Practice) 1. Helen bought more than 3 apples. Counting by 3s, there is one apple left. Counting by 4s, there is one apple left too. At least, how many apples did she buy? 2. Three consecutive multiples of 15 have a sum of 360? What is the smallest number among the three numbers? 3. If x − 1 is a multiple of 7, which of the following must be the next greater multiples of 7? 4. Julia, John, and George are riding a bike around a 1500 yards circular track. They start at the same place, same time and in the same direction, but each rides at different speed with Julia at 738 yards per minute, John at 788 yards per minute, and George at 838 yards per minute. What is the least number of minutes will it take for all three to be together again? 5. A number is greater than 2. When the number is divided either by 5 or 7, the remainder is 2. What is the smallest possible even number that has the above property? |