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Tejas Goyal
Subject: Maths
, asked on 19/1/18
Question14
Answer
1
Vijaya Kowstubha T
Subject: Maths
, asked on 17/1/18
if the radius of cone is reduced to half then find the new volume
Answer
2
Arjun Pal
Subject: Maths
, asked on 17/1/18
Solve this:
Answer
1
Bhavya Biswas
Subject: Maths
, asked on 16/1/18
Solve question no. 12
Q.12. A cone, a hemisphere and a cylinder stand on equal base and have the same height. Find the ratio of their volume.
Answer
1
Devhuti
Subject: Maths
, asked on 14/1/18
a cone is 8.4 cm high and the radius of its base is 2.1 cm . it is melted and recasted into a sphere . find the radius of sphere .
Answer
1
Devhuti
Subject: Maths
, asked on 14/1/18
the edges of a triangular board are 6 cm , 8 cm , 10 cm . calculate the cost of painting in at the rate of 9 paise per cm
^{2}
Answer
1
Devhuti
Subject: Maths
, asked on 13/1/18
a shot put is a metallic sphere of radius 3.5 cm . find the density of the metal is 7.8g per cm
^{3}
, find the mass of the shot-put. take pie 22/7
Answer
1
Akhilesh Kumar
Subject: Maths
, asked on 13/1/18
What is answer of question 11 and 12
Q.11. The diameter of a roller 120 cm long is 84 cm. If it takes 50 complete revolutions to level a playground, determine the cost of leveling it at the rate of 50 paise per square metre.
Q.12. A die is thrown once find the probability of finding:-
i) Prime Number
ii) A number divisible by 3
Answer
1
Bhavya Biswas
Subject: Maths
, asked on 13/1/18
what is the formula for csa of cuboid??
Answer
4
Devhuti
Subject: Maths
, asked on 13/1/18
if the number of square centimetres in the surface area of a sphere is equal to the number of cubic cm in its volume . find the diameter of sphere
Answer
2
Devhuti
Subject: Maths
, asked on 12/1/18
On a construction site, a deep pit is barricade from the remaining portion by using 100 hollow cones made of recycled plastic. Each one has a base diameter 20 cm and height half a meter.
i) What is the cost of painting all the outer side of each of cone is to be painted red and cost of painting is rs 30 per m
^{2 . }
[pie =3.14, root 26=5.1]
ii) which value is depicted by using recyclic plastic
Answer
1
Devhuti
Subject: Maths
, asked on 12/1/18
The base of an isosceles triangle is 12cm and its perimeter is 32cm. find its area.
Answer
2
Devhuti
Subject: Maths
, asked on 12/1/18
How much ice-cream can be put into a cone with base radius 3.5cm and height 12cm
Answer
1
Devhuti
Subject: Maths
, asked on 12/1/18
Calculate the area of triangles formed by joining the points (4,0 0,0 AND 0,40)
Answer
1
Admya Maini
Subject: Maths
, asked on 11/1/18
Solve this:
A closed cylindrical water tank is made from a plastic sheet. Its diameter is 1.4m and height 3.5m. Find
(i) Lateral (curved)surface area of the tank.
(ii) The actual area of the plastic sheet used if 1/13 of sheet actually used was wasted in making tank. (Take
$\pi =22/7$
).
Answer
1
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Q.12. A cone, a hemisphere and a cylinder stand on equal base and have the same height. Find the ratio of their volume.

^{2}^{3}, find the mass of the shot-put. take pie 22/7Q.11. The diameter of a roller 120 cm long is 84 cm. If it takes 50 complete revolutions to level a playground, determine the cost of leveling it at the rate of 50 paise per square metre.

Q.12. A die is thrown once find the probability of finding:-

i) Prime Number

ii) A number divisible by 3

i) What is the cost of painting all the outer side of each of cone is to be painted red and cost of painting is rs 30 per m

^{2 . }[pie =3.14, root 26=5.1]ii) which value is depicted by using recyclic plastic

A closed cylindrical water tank is made from a plastic sheet. Its diameter is 1.4m and height 3.5m. Find

(i) Lateral (curved)surface area of the tank.

(ii) The actual area of the plastic sheet used if 1/13 of sheet actually used was wasted in making tank. (Take$\pi =22/7$).