7. Two liquid density 1100kg/m³ and 850kg/m³are mixed in equal volumes. The

mixture is a tank of 3m by 0.4m by 50cm to the brim What is the mass of each

liquid

330 kg for high density liquid

255 kg for low density liquid

Explanation:

Density is defined as mass per unit volume hence expressed as p=m/v where p is density, m is mass and v is volume. Making m the subject of the formula then m=pv

The volume of the given container is given by lwh where l is length, w is width and h is height. Substituting 3m, 0.4 m and 0.5 m for l, w and h then volume is 3*0.4*0.5=0.6 cubic metres

Since the liquids are mixed equally, volume for each is 0.6/2=0.3 cubic metres

Mass of first liquid will be 1100*0.3=330 kgs

Mass for other liquid whose density is 850 kg/m3 will be 0.3*850 = 255 Kgs