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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.
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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
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संबंधित प्रश्न
Find the value of the letter in the following and give reasons for the steps involved.
1 A
x A
------
9 A
------
Find the values of the letters in the following and give reasons for the steps involved
A B
x 3
-------
C A B
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Find the values of the letters in the following and give reasons for the steps involved.
A B
x 5
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C A B
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| A | |
| + | A |
| + | A |
| B | A |
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