1.

If \[15\text{ }\times \text{ }20\text{ }\times \text{ }60\text{ }=\text{ }20\text{ }\times \text{ }60\text{ }\times \text{ }15\] and \[21\text{ }\times \text{ }42\text{ }\times \text{ }63\text{ }=\text{ }42\text{ }\times \text{ }63\text{ }\times \text{ }21\] then \[\text{19 }\times \text{ 17 }\times \text{ 41 = ?}\]

A. \[\text{17 }\times \text{ 19 }\times \text{ 41}\]
B.  \[\text{17  }\!\!\times\!\!\text{  41  }\!\!\times\!\!\text{  19}\]  
C.  \[\text{19  }\!\!\times\!\!\text{  41  }\!\!\times\!\!\text{  17}\]
D.         \[\text{41  }\!\!\times\!\!\text{  19  }\!\!\times\!\!\text{  17}\]
Answer» C.  \[\text{19  }\!\!\times\!\!\text{  41  }\!\!\times\!\!\text{  17}\]


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