Mato is making a leather belt inlaid with beads. On the first day there were b beads on the belt. On
1 answer:
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Given:
The sequence is 29, 22, 15, 8, 1, ...
To find:
The common difference.
Solution:
We have,
29, 22, 15, 8, 1, ...
It is an AP.
First term :
Second term :
Now,
Common difference :
Therefore, the correct common difference is -7.
Note: Here calculation by student is not given, so we cannot find the error of the student.