In a school, six bells are installed. All of them commence tolling together at the intervals of 2, 4, 5, 8, 10 and 12 seconds respectively. Can you find out how many times do they toll together in thirty minutes?
There is a 4 digit number that may comprise of 6, 2, 7 and 5 digits. Please take note that none of the numbers are repeated. Can you find out the possible number of combinations that are divisible by 36?
Ironically, there is no possible combination that is divisible by 36 that can be framed using the digits 6, 2, 7 and 5.
For a number to be divisible by 36, it must be divisible by 2, 3, 4, 6 and 9.
Now the sum of the given digits = 6 + 2 + 7 + 5 = 20 which is not divisible by 3. Thus there can be no combination that is divisible by 3.
In such case, there can be no combination that is divisible by 36.
In this question, we have to find out the highest common factor
While dividing 1080 with 729, the remainder is 351
While dividing 729 by 351, the remainder is 27
While dividing 351 with 27, the remainder is 0.