Advertisements
Advertisements
प्रश्न
A three-digit number 2 a 3 is added to the number 326 to give a three-digit number 5b9 which is divisible by 9. Find the value of b – a.
Advertisements
उत्तर
2 a 3
Given, + 3 2 6
5 b 9
We see that,
In one’s column, 3 + 6 = 9 (true)
In third column, 2 + 3 = 5 (true)
∴ a + 2 is a single digit number b as there is no carry-over in the addition.
Thus, a + 2 = b ⇒ b – a = 2
APPEARS IN
संबंधित प्रश्न
Find the values of the letters in the following and give reasons for the steps involved.
A 1
+ 1 B
-------
B 0
-------
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
----------
If 
then A = ______ and B = ______.
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.
B 6
+ 8 A
C A 2
Find the value of the letters in the following question.
1 B A
+ A B A
8 B 2
Find the value of the letters in the following question.
A B
× 6
C 6 8
Find the value of the letters in the following question.
A A
× A
C A B
Find the value of the letters in the following question.
A B
– B 7
4 5
Work out the following multiplication.
12345679
× 9
Use the result to answer the following question.
By what number should 12345679 be multiplied to get 888888888?
