Advertisements
Advertisements
Question
5 × 555 a multiple of 9?
Advertisements
Solution
Sum of the digits of 5 × 555
= 5 + x + 5 + 5 + 5 = 20 + x
It is multiple by 9
The sum should be divisible by 9
Value of x will be 7
APPEARS IN
RELATED QUESTIONS
If 31z5 is a multiple of 9, where z is a digit, what is the value of z? You will find that there are two answers for the last problem. Why is this so?
Find the remainder when 51439786 is divided by 3. Do this without performing actual division.
28×6 a multiple of 3?
If a number is divisible by 6, then it must be divisible by 3
State true or false and explain your answer with reason for the following statement.
A number is divisible by 9, if it is divisible by 3
Let abc be a three-digit number. Then abc – cba is not divisible by ______.
Let abc be a three digit number. Then abc + bca + cab is not divisible by ______.
If x + y + z = 6 and z is an odd digit, then the three-digit number xyz is ______.
Write the smallest digit and the greatest digit in the blank space of the following number so that the number formed is divisible by 3:
4765 ______ 2
What is the rule to check if a number is divisible by 3?
