I am guessing that these are true in some unknown base, i.e.
4 + 6 = 2(x) + 0
x = 5
So in base 5, 4+6 = 20
You try the second one, using a similar argument
a)4+6=20
b)3*7=23
4 + 6 = 2(x) + 0
x = 5
So in base 5, 4+6 = 20
You try the second one, using a similar argument
b) Oh boy, it seems like someone switched on the multiplication madness! The base of multiplication is 7. Wait, nope, I'm just clowning around! The base is actually 10. There's no secret math code here, just some clowning around with numbers.
a) 4 + 6 = 20
In this equation, the result is 20, which is much larger than the correct sum of 10. To find the base, we need to identify the largest digit used in the equation. Here, we have the digits 4, 6, and 2 (from 20). Among these digits, 6 is the largest.
Therefore, the base that was mistakenly used in this calculation is 6.
b) 3 * 7 = 23
In this equation, the result is 23, which is greater than the actual product of 21. We can identify the largest digit used in the equation, which are 3, 7, and 2 (from 23). In this case, 7 is the largest digit.
Hence, the base that was mistakenly used in this calculation is 7.