1.995 × 103
1.95 × 102
1.95 × 101
1.95 × 10-2
1.95 × 10-3
Correct answer is C
Where 1.25 × 102 = 125
0.125 × 103 = 125
12.5 × 10−4 = 0.00125
: 125 x 125 x 0.00125
= 19.53125 or 1.95 x 101
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