Advertisements
Advertisements
प्रश्न
If the number 7254 * 98 is divisible by 22, the digit at * is ______.
विकल्प
1
2
6
0
उत्तर
If the number 7254 * 98 is divisible by 22, the digit at * is 6.
Explanation:
7254 * 98 is divisible by 22, if it is divisible by both 2 and 11.
Given number is even, therefore it is divisible by 2.
7254 * 98 is divisible by 11, if (7 + 5 + * + 8) – (2 + 4 + 9) or (20 + *) – 15 or 5 + * is divisible by 11.
∴ The digit at * should be filled by 6.
APPEARS IN
संबंधित प्रश्न
If a number divides three numbers exactly, it must divide their sum exactly.
If a number exactly divides the sum of three numbers, it must exactly divide the numbers separately.
If the sum of the digits of a number is divisible by 3, then the number itself is divisible by 9.
If the difference between the sum of digits at odd places (from the right) and the sum of digits at even places (from the right) of a number is either 0 or divisible by _____, then the number is divisible by 11.
Find a 4-digit odd number using each of the digits 1, 2, 4 and 5 only once such that when the first and the last digits are interchanged, it is divisible by 4.
Using each of the digits 1, 2, 3 and 4 only once, determine the smallest 4-digit number divisible by 4.
Using divisibility tests, determine which of the following numbers are divisible by 4?
21084
Using divisibility tests, determine which of the following numbers are divisible by 4?
31795012
Using divisibility test, determine which of the following numbers are divisible by 9?
5652
Which of the following will not represent zero?
1 + 0
