Advertisements
Advertisements
Question
If A × 3 = 1A, then A = ______.
Advertisements
Solution
If A × 3 = 1A, then A = 5.
Explanation:
We have, A
× 3
1A
Here, 3 × A is a two-digit number whose unit digit is A.
A can take any value between 0 to 9, but only A = 5 satisfies the product.
Hence, A = 5
APPEARS IN
RELATED QUESTIONS
Without performing actual addition and division write the quotient when the sum of 69 and 96 is divided by
(i) 11
(ii) 15
If sum of the number 985 and two other numbers obtained by arranging the digits of 985 in cyclic order is divided by 111, 22 and 37 respectively. Find the quotient in each case.
Which of the following statement is true?
A number is divisible by 18, if it is divisible by both 3 and 6.
Do you remember magic triangles? Come now, let s make some magic squares.
- Fill this square using all the numbers from 21 to 29.
Rule: The total of each side is 75.
If A3 + 8B = 150, then the value of A + B is ______.
A four-digit number abcd is divisible by 11, if d + b = ______ or ______.
If the digit 1 is placed after a 2-digit number whose tens is t and ones digit is u, the new number is ______.
If AB + 7C = 102, where B ≠ 0, C ≠ 0, then A + B + C = 14.
A five-digit number AABAA is divisible by 33. Write all the numbers of this form.
756x is a multiple of 11, find the value of x.
