Instantaneous power as dot product of force and velocity

2023 Manipur 1 question

1. A particle moves with a velocity $(5\hat{i}-3\hat{j}+6\hat{k})$ m s$^{-1}$ horizontally under the action of constant force $(10\hat{i}+10\hat{j}+20\hat{k})$N. The instantaneous power supplied to the particle is: