Advertisements
Advertisements
Question
Find the value of the letter in the following and give reasons for the steps involved.
1 A
x A
------
9 A
------
Advertisements
Solution
The multiplication of A with A itself gives a number whose ones digit is A again. This happens only when A = 1, 5, or 6.
If A = 1, then the multiplication will be 11 × 1 = 11. However, here the tens digit is given as 9. Therefore, A = 1 is not possible. Similarly, if A = 5, then the multiplication will be 15 × 5 = 75. Thus, A = 5 is also not possible.
If we take A = 6, then 16 × 6 = 96. Therefore, A should be 6.
The multiplication is as follows
1 6
x 6
------
9 6
------
Hence, the value of A is 6.
APPEARS IN
RELATED QUESTIONS
Find the values of the letters in the following and give reasons for the steps involved.
A B
x 5
-------
C A B
-------
Find the values of the letters in the following and give reasons for the steps involved.
A B
x 6
-------
B B B
-------
Find the values of the letters in the following and give reasons for the steps involved.
2 A B
+ A B 1
---------
B 1 8
----------
Find the value of the letters in the following question.
A A
+A A
XA Z
Find the value of the letters in the following question.
A 0 1 B
+ 1 0 A B
B 1 0 8
Find the value of the letters in the following question.
A B
× 6
C 6 8
212 × 5 is a multiple of 3 and 11. Find the value of x.
Let E = 3, B = 7 and A = 4. Find the other digits in the sum
B A S E
+ B A L L
G A M E S
Work out the following multiplication.
12345679
× 9
Use the result to answer the following question.
What will be 12345679 × 45?
Work out the following multiplication.
12345679
× 9
Use the result to answer the following question.
By what number should 12345679 be multiplied to get 999999999?
