John can eat a quarter of a pizza in one minute. How long does it take John to eat one pizza and a half?
Options
A) 1 min
B) 3 min
C) 7 min
D) 6 min
E) 9 min
The above problem could also be solved by dividing the mixed number 1 and 1/2 by 1/4   1 (1/2) * 1 / 4 = 3 / 2 * 4 / 1= 
<gadget id="calculator">3 / 2 * 4 / 1</gadget>
<output>6</output>
6 minutes.   correct answer 6 min
<result>D</result>
John can eat a quarter of a pizza in one minute. How long does it take John to eat one pizza and a half?