Can someone please explain how to work this out

Compounds A and B react together to form an equilibrium mixture containing
compounds C and D according to the equation
2A + B ⇌ 3C + D
(a) A beaker contained 40 cm3 of a 0.16 mol dm–3 aqueous solution of A.
9.5 × 10–3 mol of B and 2.8 × 10–2 mol of C were added to the beaker and
the mixture was left to reach equilibrium.
The equilibrium mixture formed contained 3.9 × 10–3 mol of A.
Calculate the amounts, in moles, of B, C and D in the equilibrium mixture
Amount of B ____________________ mol
Amount of C ____________________ mol
Amount of D ____________________ mol
(5)