Find the value of one clock using the first equation. According to first equation, 9’o clock + 9’o clock + 3’o clock = 9 + 9 + 3 = 21.
Therefore; 1 Clock = 1
Using equation two, three calculators are equal to 30. Therefore, one calculator is equal to 10.
Also, the sum of numbers inside the calculator is 1 + 2 + 3 + 4 = 10.
Therefore, the value of the calculator depends on the sum of the numbers inside it.
