1.

Two toy trains start at the same time. The first one stops after every \[5\] seconds and the second one stops after every \[4\] seconds. How many times do they stop together in \[1\] minute?

A.  \[4\]                            
B.                     \[2\]                
C.                     \[3\]                            
D.                     \[5\]
Answer» D.                     \[5\]


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