Question 1113131

a rectangular tank measuring 100cm by 50cm by 30cm is 3/10 full of water.

Volume of tank = 100*50*30 =150,000 cm^3
3/10 is full
so volume of water = 45000cm^3

height of water = 45000/100*50  = 9 cm

oil poured = 15000 cm^3
The oil poured is 1/3 that of oil
so height of oil will be 1 cm