The number you seek is 78 - it is a multiple of both 6 and 26 and is less than 85.
To be a multiple of both 6 and 26 it must be a multiple of their lowest common multiple:
6 = 2 x 3
26 = 2 x 13
lcm = 2 x 3 x 13 = 78
So it must be one of 78, 156, 234, ...; only 78 satisfies the criteria of being less than 85.
26
The number between 25 and 40 is 26. This can be determined by recognizing that the number must be greater than 25 but less than 40, and the next whole number after 25 is 26. Therefore, 26 is the correct answer.
78.
26
13 and 26
48 - 26 = 22
23
Note that 26x3=78. Next note that 78 divided by 6 is 13. This tells us 78 has 26 and 6 as factors and clearly it is less than 85.
-sqrt(26)
- sqrt(26)
The number that is between 26 and 30 is 27. This number falls exactly in the middle of 26 and 30 on the number line. It is one unit greater than 26 and one unit less than 30.
26
- sqrt(26)
78
78
13 has a multiple of 26
13