30. How many three digit numbers are divisible by 7 2
Answers
Answered by
1
Answer:
144,216,288..................936
a=144 ,d=72
use- a+(n-1)+d=an
144+72n-72=936
72n+72=936
72n=936-72
72n=864
n=864/72
n=12
That is the Answer.
Similar questions