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An insect starts from (2,3,4) and travel...

An insect starts from `(2,3,4)` and travels along `(hat(i)+2hat(j)+2hat(k))` with `15 m//s` for `2sec`. Then it reverse it direction and travels with `3m//s` for `5` sec. If final position of the insert is `(x,y,z)`. Then find the value of `(x+y+z)` ?

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