Advertisements
Advertisements
प्रश्न
In a magic square each row, column and diagonal have the same sum. Check which of the following is a magic square.
1)
| 5 | -1 | -4 |
| -5 | -2 | 7 |
| 0 | 3 | -3 |
2)
| 1 | -10 | 0 |
| -4 | -3 | -2 |
| -6 | 4 | -7 |
Advertisements
उत्तर
It can be observed that in square (1), every row and column add up to give 0. However, the sum of one of its diagonals is not 0.
As − 4 − 2 = −6 ≠ 0,
Therefore, (i) is not a magic square.
Similarly, in square (2), each row, column, and diagonal add up to give −9. Therefore, (2) is a magic square.
संबंधित प्रश्न
In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If jack’s scores in five successive rounds were 25, − 5, − 10, 15 and 10, what was his total at the end?
Subtract the numbers in the top row from the numbers in the first column and write the proper number in each empty box.
| – | 6 | 9 | –4 | –5 | 0 | +7 | –8 | –3 |
| 3 | 3 – 6 = –3 | |||||||
| 8 | 8 − (−5) = 13 | |||||||
| –3 | ||||||||
| –2 |
Indicate the following using '+' or '−' sign: A withdrawal of Rs 300
Simplify:
1056 + (−798) + (−38) + 44 + (−1)
Subtract: −15 from 25
Subtract: −135 from −250
Fill in the blanks:
1 ÷ (......) = −1
In the pair given below, find the larger integer.
When 34 is subtracted from −36, we get
Write 'T' for true and 'F' for false for the following:
−(−36) − 1 = − 37.
