What is the remainder when 7^2017 is divided by 33?
please solve Q23 & 24
What is the remainder when 7190 is divided by 199 ?
How many numbers N are there such that sum of N and its digits is 1000003?
Hi sir, please help with the problem below:
What is the greatest four-digit number which is exactly divisible by 24, 40 and 48?
1. 9960 2. 9990 3. 9980 4. 9840
The ten digit number 2x600000y8 is exactly divisible by 24. If X ≠ 0 and y ≠ 0, then the least value of (x+y) is equal to;
- 9
- 2
- 5
- 8
For a number to be divisible by 24,
It should be divisible by 8 and 3.
For a number to be divisible by 8,
The last three digits should be divisible by 8.
For,
Y = 4, the last three digits,
i.e, 048 is divisible by 8.
For a number to be divisible by 3,
The sum of the digits should be divisible by 3.
20 + x should be divisible by 3.
For x = 1, 20+x = 21 is divisible by 3
X = 1 and y = 4
Hence, x+y = 1+4 = 5