Question

G. Numerical problems
1. Find the volume of a box of length 80 cm,
breadth 50 cm and depth 40 cm in m'
[Ans.: 0.16 m)
2./ The initial level of water in a measuring
cylinder is 50 mL. When a glass stopper is
dropped into it, the level rises to 54.5 mL.
Calculate the volume of the stopper in cm.
[Ans.: 4.5 cm)
3. A concrete slab weighing 48 kg has a
volume of 0.016 m'. What is the density of
concrete? [Ans.: 3000 kg/m)
4. The density of aluminium is 2710 kg/m'.
Find the mass of an aluminium block of
dimensions 2 m X 1.5 m X 1 m.
[Ans.: 8130 kg]
Explain step by step how each numbers answers are came?​

Answer 1

Answer:

1.Answer. lbh=0.8*0.5*0.4= 0.16 m3.

2.Correct option is

28ml

Initial level of water v

i =55 ml

Final level of water v

f=83ml

Volume of stone V

stone

=Vf −Vi

=83−55=28 ml

3.3000 kg/m

4.given in pictures

hope it helps you please make it a brainlist answer