Search found 2 matches
TTT
One of the number properties is that to see if a number is multiple of 11 you must: If the number is "abc", then c-b+a = 0 or 11. In this case 892 132 24x needs to bee multiple of 11, so: x - 4 + 2 - 2 + 3 - 1 + 2 - 9 - 8 must equal 0 or 11 x - 1 must equal 0 or 11 x must be 1, because is ...
- by mariliatgd
Sun Jan 14, 2018 3:07 pm- Forum: Problem Solving
- Topic: If the number 892,132,24x is divisible by 11, what must . .
- Replies: 3
- Views: 921
This was my way of solving it: 1) Find the multiples between 1 and 39. 39/3 = 13 >> There are 13 multiples of 3 from 1 to 39. The same applies to -39 to -1 so it should have also 13 multiple between -39 and -1 And finally, you should count the 0 as a multiple. 13 + 13 + 1 = 27. ------ It should also...
- by mariliatgd
Sun Jan 14, 2018 3:00 pm- Forum: Problem Solving
- Topic: How many multiples of 3 are there between -40 and 40?
- Replies: 4
- Views: 1094