Numbers 2,3,4 and one more number are written in the cells of 2 x 2 table. It is know that the sums of the numbers in the first row are equal 9, and the sum of the numbers in the second row is equal to 6. The unknown number is? ...
Đọc tiếp
Numbers 2,3,4 and one more number are written in the cells of 2 x 2 table. It is know that the sums of the numbers in the first row are equal 9, and the sum of the numbers in the second row is equal to 6. The unknown number is?
Suppose:
* The second digit has a total of 6 turns 2 and 4
=> 2 digits above are 3 and: 3 + ... + 9 <=> The above two digits are 3 and 6.
* If the second row is 2 and 4, then we only join 3 and 3 [because if 3 is not in the sequence]
=> The top row has a total of <9
As such: