Class-VI
Solids
Part-2
Revision
Exercise
I.C.S.E.Board
1. A solid cuboid is 36 cm long, 30 cm
broad and 24 cm high.Find:
i) total
surface area of the cuboid
ii) cost
of painting it at the rate of Rs.0.45 per sq.cm.
2. The volume of a cuboid is 187.5 m3.If
its length and breadth are 10 m and 5 m
respectively; find its height and its total surface area.
3. A rectangular water tank contains 10.5 m3
water upto a depth of 2 m.If the breadth of tank is 1.7 m; find its length.
4. The base of a rectangular pool is
horizontal.If the depth of the pool is 60 cm and its length and breadth are 8.5
m and 5.6 m respectively; find the volume of water required to fill the pool
completely.
5. A solid cuboidal metal has length=72 cm,
breadth =50 cm and height=36 cm.Its melted and recasted into identical solid
cubes, each of edge 6 cm; find the number of cubes so obtained.
6. The solid cube of each side 24 cm is
melted and recasted into identical solid cuboidals with length=8 cm, breadth=6
cm and height=4 cm.Find the number of solid cuboidals formed.
7. Find the least internal volume of a box
which was hold 8 identical boxes each with dimensions 15cm x 24 cm x 16 cm.
8. A birthday cake, rectangular in shape,
has dimensions 45 cm x 30cm x 18 cm.If each person attending the birthday party
consumes 150 cm3 of cake, find for how many persons will the cake be
sufficient.
9. Find the least number of bricks required
to make 3.2 m long,36 cm broad and 4.2 m high, if the dimensions of each brick
are 24cm x 12cm x 7.5 cm.
10. A wall is 4.5 m long,3.6 m high and 25 cm
thick.
i) Find
the volume of the wall in cubic centimetre?
ii) How
many bricks of length 30 cm, width 12 cm and thickness 10 cm will be required
to make this wall?
Compiled by:-
Sanjeev Kumar Taneja
D.R.P.Maths
Ludhiana
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