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प्रश्न
If 2A7 ÷ A = 33, then find the value of A.
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उत्तर
We observe that, 4 × 3 can never be a single-digit number 2, so 4 × 3 must be a two-digit number, whose ten’s digit is 2 and unit’s digit is the number less than or equal to 4. Therefore, the value of 4 can be 9, as the values of 4 from 1 to 8 do not fit.
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संबंधित प्रश्न
Find the values of the letters in each of the following and give reasons for the steps involved.
3 A
+ 2 5
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B 2
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Find the values of the letters in the following and give reasons for the steps involved.
4 A
+ 9 8
------
C B 3
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Find the values of the letters in the following and give reasons for the steps involved
A B
x 3
-------
C A B
-------
Find the values of the letters in the following and give reasons for the steps involved.
A B
x 5
-------
C A B
-------
| A | |
| + | A |
| + | A |
| B | A |
Find the value of the letters in the following question.
8 5
+ 4 A
B C 3
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 B
× A B
6 A B
If from a two-digit number, we subtract the number formed by reversing its digits then the result so obtained is a perfect cube. How many such numbers are possible? Write all of them.
Work out the following multiplication.
12345679
× 9
Use the result to answer the following question.
What will be 12345679 × 63?
