Numbers 1, 2, 3, ., 49 are written in the cells of 49×49 square, and the following holds:
In every pair of cells that are symmetrical with respect to the main diagonal the same numbers are written;
In any row and in any column all the numbers are distinct.
What is the sum of all the numbers on this diagonal?
Answers
Answered by
0
850
Step-by-step explanation:
the co-ordinate of point p and q are x and y find d(PQ) i) x=7, =10
Answered by
0
Answer:
2401
Step-by-step explanation:
49×49=2401 number of cells
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