Number System
20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ?
If the sum of the digits of a number is divisible by 9, the number will be divisible by 9.2 + 6 + 3 + 2 + 5 + 1 = 19The nearest multiple of 9 is 18.19 - 18 = 1.