0.003 * ? * 0.0003 = 0.00000027

– by
0.003 * ? * 0.0003 = 0.00000027

A. 9
B. 3
C. 0.3
D. 0.03
Explanation:
0.003 * ? * 0.0003 = 0.00000027
3/1000 * ? * 3/10000 = 3/1000 * 3/1000 * 3/100
? = 3/10 = 0.3