Tests of Divisibility
Divisibility by 10 Deleted for CBSE Board 2024 Exams
Divisibility by 5 Deleted for CBSE Board 2024 Exams
Divisibility by 3 Deleted for CBSE Board 2024 Exams
Example 8 Important Deleted for CBSE Board 2024 Exams
Example 7 Deleted for CBSE Board 2024 Exams
Question 3 Deleted for CBSE Board 2024 Exams
Question 4 Important Deleted for CBSE Board 2024 Exams
Divisibility by 9 Deleted for CBSE Board 2024 Exams
Example 5 Important Deleted for CBSE Board 2024 Exams
Example 4 Deleted for CBSE Board 2024 Exams
Example 6 Important Deleted for CBSE Board 2024 Exams
Question 1 Deleted for CBSE Board 2024 Exams
Question 2 Important Deleted for CBSE Board 2024 Exams You are here
Tests of Divisibility
Last updated at April 16, 2024 by Teachoo
Question 2 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?We know that, A Number is divisible by 9, if sum of digits is divisible by 9 31z5 Sum of digits = 3 + 1 + z + 5 = 9 + z Let us check different values of z & check if number is divisible by 9 Sum of digits = 9 + z