Question

number is divisible by 9 and 100 both by which other number be always divisible.​

Answer 1

Answer:

To find such a number you must know some basic maths. If a number is divisible by 9 then the sum of all digits must be a multiple of 9 and if a number is divisible by 100 it must end with 00 (two zeroes at end). A number which is divisible by both must satisfy both the condition so sum of the digits must be divisible by 9 and must end with double zero (00). So a number divisible by 900 is divisible by both 9 and 100. Keep it easy.