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NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes Ex 13.3

December 26, 2018 by Dattu

NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes Ex 13.3 are part of NCERT Solutions for Class 10 Maths. Here are we have given Chapter 13 Surface Areas and Volumes Class 10 NCERT Solutions Ex 13.3.

  • Surface Areas and Volumes Class 10 Ex 13.1
  • Surface Areas and Volumes Class 10 Ex 13.2
  • Surface Areas and Volumes Class 10 Ex 13.4
  • Surface Areas and Volumes Class 10 Ex 13.5
BoardCBSE
TextbookNCERT
ClassClass 10
SubjectMaths
ChapterChapter 13
Chapter NameSurface Areas and Volumes
ExerciseEx 13.3
Number of Questions Solved9
CategoryNCERT Solutions

NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes Ex 13.3

NCERT Solutions for Class 10 Maths

Question 1.
A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder.

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.3 1s

Question 2.
Metallic spheres of radii 6 cm, 8 cm and 10 cm, respectively, are melted to form a single solid sphere. Find the radius of the resulting sphere.

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.3 1s1

Question 3.
A 20 m deep well with diameter 7 m is dug and the earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform.

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.3 3s

Question 4.
A well of diameter 3 m is dug 14 m deep. The earth taken out of it has been spread evenly all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of the embankment.

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.3 4s

Question 5.
A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice cream is to be filled into cones of height 12 cm and diameter 6 cm, having a hemispherical shape on the top. Find the number of such cones which can be filled with ice cream.

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.2 5s
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.2 5s1
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.2 5s2

Question 6.
How many silver coins, 1.75 cm in diameter and of thickness 2 mm, must be melted to form a cuboid of dimensions 5.5 cm × 10 cm × 3.5 cm?

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.3 6s

Question 7.
A cylindrical bucket, 32 cm high and with radius of base 18 cm, is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. If the height of the conical heap is 24 cm, find the radius and slant height of the heap.

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.2 7s

Question 8.
Water in a canal, 6 m wide and 1.5 m deep, is flowing with a speed of 10 km/h. How much area will it irrigate in 30 minutes, if 8 cm of standing water is needed?

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.3 8s

Question 9.
A farmer connects a pipe of internal diameter 20 cm from a canal into a cylindrical tank in her field, which is 10 m in diameter and 2 m deep. If water flows through the pipe at the rate of 3 km/h, in how much time will the tank be filled?

Solution:
NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes ex 13.3 9s

 

We hope the NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes Ex 13.3 help you. If you have any query regarding NCERT Solutions for Class 10 Maths Chapter 13 Surface Areas and Volumes Ex 13.3, drop a comment below and we will get back to you at the earliest.

Filed Under: CBSE Tagged With: NCERT Solutions for Class 10 Maths

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