Answer :

[tex]\dfrac{t}{2}+\dfrac{t}{3}=5|\cdot6\\ 6\cdot\dfrac{t}{2}+6\cdot\dfrac{t}{3}=6\cdot5\\ 3t+2t=30\\ 5t=30|\div5\\ t=\dfrac{30}{5}\\t=6 [/tex]

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