Question

per day
ES
1ONLZBOR
23. A small village having population of 10000 requires 75 litres of water per
head
The village has got an overhead tank of measurement 40 m * 25 m * 15 m. For how
many days will the water of this tank last?
24. A field is 15 m long and 12 m wide. A pit 8 m long 2.5 m wide and 2 m deep is dug
in a corner of the field and soil taken out is spread uniformly over the remaining area of
the field, find the height through which the level of the field has been raised.
25. Lengths of the outer edges of a closed box are respectively 25 cm, 23 cm and 18 cm.
If thickness of the wood be 2 cm then, find (i) the total internal surface and
D80
the cost of painting the internal surface at the rate of 50 paise
per cm. (ii) cost of the total wood at the rate of 1 cm.
26. A room is 7 m long, 6.5 m wide and 4.5 m high in which there is a
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3 m * 1.4 m gate and 4 equal windows of size 2 m x 1 m. Find the cost
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of colouring of internal walls at the rate of * 1 per m²
27. A cuboid shaped wooden piece 2.3 m long, 0.75 m wide and of some thickness is cut
off from a wooden log. Its volume is 1.104 m². How many rectangular planks of six
2.3 m X 0.75 mx 0.04 m can be cut out from this cuboid?
28. Find the depth of a water tank whose base is a square of 5 m side, if in this
tank water of another tank whose length, breadth and height are respectively
7.5 m, 4 m and 2.5 m can be accommodated.
per cm
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DC
THODA03
ANSWERS​

Answer 1

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