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Amit Rana
Subject: Maths
, asked on 27/2/18
Q.26. The height of a cone is 10 cm. The cone is divided into two parts suing a plane parallel to its base at the middle of its height. Find the ratio of the volumes of the two parts.
Answer
1
Tanya Shankar
Subject: Maths
, asked on 26/2/18
Please solve this question
Answer
1
Manthra Bhaskar 💙🖤🖤ðŸ...
Subject: Maths
, asked on 26/2/18
Water is flowing through a cylindrical pipe, of internal diameter 2cm, into a cylindrical tank of base radius 40cm, at the rate of 0.4m/s. Determine the rise in level of water in the tank in half an hour. (This is the question.) I couldn't understand the last step. Please explain me. Fast....
Answer
1
Simran Dalvi
Subject: Maths
, asked on 26/2/18
Q.13. How many spherical chocolate balls of diameter 8 inches can be made from a chocolate cube of side 24 inches?
Answer
2
Himanshu Sharma
Subject: Maths
, asked on 26/2/18
Ans ans ans ans ans ans ans
Answer
3
Aayushi Rohilla
Subject: Maths
, asked on 25/2/18
Pls explain the calculation.
Answer
2
Krisha 💫
Subject: Maths
, asked on 25/2/18
A cubical block of side 5 cm is surmounted by a hemisphere. The base of the block is a cube and the hemisphere fixed on the top has a diameter 4.2 cm. Find the total surface area of the block and the cost of painting at the rate of Rs. 5 per 100 sq. cm.
Take
π
=
22
7
Answer
1
Krisha 💫
Subject: Maths
, asked on 25/2/18
No.12
Q.12. A cubical block of side 5 cm is surmounted by a hemisphere. The base of the block is a cube and the hemisphere fixed on the top has a diameter 4.2 cm. Find the total surface area of the block and the cost of painting at the rate of Rs. 5 per 100 sq. cm. (Take
π
=
22
7
)
Answer
1
Krisha 💫
Subject: Maths
, asked on 25/2/18
No.12
Q.12. 150 spherical marbles, each of diameter 1.4 cm, are dropped in a cylindrical vessel of diameter term containing some water. which are completely immersed in water. Find the rise in the level of water in vessel.
Answer
1
Rushabh Dave
Subject: Maths
, asked on 25/2/18
A solid metallic cylinder of diameter 12cm and height 15cm is melted and recast into toys each in the shape of a cone of radius 3cm and height 9cm. Find the number of toys so formed.
Answer
2
Pooja Agarwal
Subject: Maths
, asked on 25/2/18
the height of a glass tumbler is 12 cm. the radius of its circular base is 3 cm and that of rim is 4cm.the volume of tumbler
Answer
2
Krisha 💫
Subject: Maths
, asked on 25/2/18
No.36
Q.36. The circumference of a circle exceeds its diameter by 67.2 cm, the circumference of a circle is ______ .
(A) 98.56 cm
(B) 98 cm
(C) 90 cm
(D) 92 cm
Answer
2
Zaid Khan
Subject: Maths
, asked on 25/2/18
find the percentage of reduction in surface area
Q.6. Three solid metal spheres of radii 3 cm, 4 cm and 5 cm respectively are melted together. The obtained metal is recast into a single solid sphere. The percentage reduction in the surface area of the solid sphere is
A. 24 %
B. 26 %
C. 28 %
D. 30 %
Answer
3
Harsh
Subject: Maths
, asked on 24/2/18
Two solid cones A and B are placed in a cylindrical tube as shown in the figure. The ratio of their capacities is 2 : 1. Find the heights and capacities of the cones.
Answer
1
Bhavyaa Trehan
Subject: Maths
, asked on 22/2/18
Q 27
27. In In a society. students thought of collecting the rain water from a roof top of
dimensions 22m x 20m by draining it into a cylindrical vessel having diameter of
base 2m and height 3.5m. If the vessel is just full, find the rainfall recorded in cm.
What values are shown by the students of that society?
Q 27
Answer
1
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Q.12. A cubical block of side 5 cm is surmounted by a hemisphere. The base of the block is a cube and the hemisphere fixed on the top has a diameter 4.2 cm. Find the total surface area of the block and the cost of painting at the rate of Rs. 5 per 100 sq. cm. (Take )
Q.12. 150 spherical marbles, each of diameter 1.4 cm, are dropped in a cylindrical vessel of diameter term containing some water. which are completely immersed in water. Find the rise in the level of water in vessel.
Q.36. The circumference of a circle exceeds its diameter by 67.2 cm, the circumference of a circle is ______ .
(A) 98.56 cm
(B) 98 cm
(C) 90 cm
(D) 92 cm
Q.6. Three solid metal spheres of radii 3 cm, 4 cm and 5 cm respectively are melted together. The obtained metal is recast into a single solid sphere. The percentage reduction in the surface area of the solid sphere is
A. 24 %
B. 26 %
C. 28 %
D. 30 %
27. In In a society. students thought of collecting the rain water from a roof top of