JEE Main 2022 · 25 Jul · Shift 1, Mathematics question 23

If the maximum value of the term independent of $t$ in the expansion of $\left(t^2x^{\frac15}+\dfrac{(1-x)^{\frac1{10}}}t\right)^{15}$, $x\ge0$, is K, then 8 K is equal to ______.