Options
A) 535
B) 565
C) 475
D) 585
Solution
Easy method
The two digit natural numbers which are divisible by 9 are
It’s two digit number which means cannot be less then 10 and cannot be more then 100
18, 27, 36, 45, 54, 63, 72, 81, 90, 99
Thus their sum
= 18 + 27 + 36 + 45 + 54 + 63 + 72 + 81 + 90 + 99
= 585
Solution 585