If (12_{e} = X_{7}), where e = 12, find X.
-
A.
20 -
B.
15 -
C.
14 -
D.
12
Correct Answer: Option A
Explanation
(12_{12} = 1 times 12^{1} + 2 times 12^{0} = 12 + 2 = 14_{10})
| 7 | 14 |
| 7 | 2 rm 0 |
| 0 rm 2 |
(therefore 12_{e} = 20_{7})
If (12_{e} = X_{7}), where e = 12, find X.
(12_{12} = 1 times 12^{1} + 2 times 12^{0} = 12 + 2 = 14_{10})
| 7 | 14 |
| 7 | 2 rm 0 |
| 0 rm 2 |
(therefore 12_{e} = 20_{7})