6
12
100
210
110
Correct answer is B
x4 = x × 40 = x in base 10.
1001002 = 1 x 25 + 1 x 22
= 32 + 4
= 36 in base 10
⟹ x2 = 36
x = 6 in base 10.
Convert 6 to a number in base 4.
| 4 | 6 |
| 4 | 1 r 2 |
| 0 r 1 |
= 124
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