Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

The number of planes of dimensions 4m×5m×20m that can be stored in a pit of dimensions 60m×40m×12m is 
Asked by nsiddu2007 | 30 Sep, 2020, 11:04: AM
answered-by-expert Expert Answer
Volume of a plank = 4 x 5 x 20 = 400 m3 
Volume of a pit = 60 x 40 x 12 = 2400 x 12 = 28800 m3
No. of planks that can be stored in a pit = Volume of pit/Volume of a plank
= 28800/400 
= 72
Answered by Renu Varma | 30 Sep, 2020, 12:11: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 10 - Maths
what is the formula of cone
Asked by kavya123 | 01 Jun, 2021, 09:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
A man donates 10 aluminium buckets to an orphanage . A bucket made of aluminium is of h=20cm and has its upper and lower end of r=36cm and 21 cm . Find the cost of preparing 10 buckets if the cost of aluminium is rs 42 per 100 cm sq
Asked by thunderboyshubharth2005 | 13 Mar, 2021, 01:54: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
How to find out slant height if h is 24 and r is 36
Asked by bhumichoudhary9091 | 15 Nov, 2020, 02:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
The number of planes of dimensions 4m×5m×20m that can be stored in a pit of dimensions 60m×40m×12m is 
Asked by nsiddu2007 | 30 Sep, 2020, 11:04: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
A cone is divided into two parts by drawing a plane through the mid point of its axis and parallel to its base. Compare the volume of two parts. 
Asked by adalroshan2464 | 10 Mar, 2020, 10:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
A metallic right circular cone 20 cm high and whose vertical angle is 60° is cut into two parts at the middle of its height by a plane parallel to its base. If the frustum so obtained be drawn into a wire of diameter 1/16cm, find the length of the wire.
Asked by aadhyavig15 | 27 Jan, 2020, 12:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Question  no 16 pls
question image
Asked by ponnunnimelillam | 12 Jan, 2020, 07:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
If the radii of the circular ends of a conical bucket which is 45 cm high be 28 cm and 7 cm, find the capacity of the bucket.
Asked by Topperlearning User | 27 Jul, 2017, 03:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
The slant height of a frustum of a cone is 4 cm and perimeters of its circular ends are 18 cm and 6 cm. Find the curved surface area.
Asked by Topperlearning User | 27 Jul, 2017, 03:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
A container, open from the top and made up of a metal sheet, is in the form of a frustum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm respectively. Find the cost of milk which can completely fill the container at the rate of Rs.20/ litre. Also find the cost of metal sheet used to make the container if it costs Rs. 8 per 100 cm2.
Asked by Topperlearning User | 27 Jul, 2017, 03:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt