Rate of reaction and stoichiometry

2022 Phase 2 1 question

1. For a chemical reaction $4A+3B\rightarrow6C+9D$, rate of formation of C is $6\times10^{-2}$ mol L$^{-1}$ s$^{-1}$ and rate of disappearance of A is $4\times10^{-2}$ mol L$^{-1}$ s$^{-1}$. The rate of reaction and amount of B consumed in interval of 10 seconds, respectively will be: