Simplify 1939392 * 625 Choose the correct answer.
A) 1212120010  B) 1212120000  C) 1212120011  D) 1212121010  E) 1212101010
Explanation:   Trick: when multiplying with   5n   5n   then put n zeros to the right of multiplicand and divide the number with   2n   2n   So using this we can solve this question in much less   time.   1939392×54=1939392000016=1212120000   Answer: Option 1212120000
<result>B</result>
Simplify 1939392 * 625