Answer:
In the small cuboid
length=4cm
breadth=2 cm
height=7-5=2 cm
Volume=l×b×h
Or, V=4×2×2
or, V=16cm^3
Also,
In the big cuboid
length=6cm
breadth=4 cm
height=5 cm
Volume=l×b×h
Or, V=6×4×5
or, V=120cm^3
Total volume=16cm^3+120cm^3
or, Total volume=136cm^3