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CBSE Class 12-science Answered

The fuel cost for running a train is proportional to the square of the speed generated in km per hour.If the fuel costs 48 per hour at speed 16 km per hour and the fixed charges amount to 1200 per hour, then find the most economical speed of train, when total distance covered by train is 5 km.
Asked by Piyu | 19 Mar, 2014, 03:24: PM
answered-by-expert Expert Answer
Answered by | 22 Mar, 2014, 02:50: PM

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CBSE 12-science - Maths
Find the local maxima and local minima for the given function and also find the local maximum and local minimum values f(x)=x99, xf(-3,3)
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CBSE 12-science - Maths
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CBSE 12-science - Maths
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CBSE 12-science - Maths
pls provide solution
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CBSE 12-science - Maths
Find the angle of  intersection of 2 curve x^2y=2 and xy^2=4    
Asked by agarwalgolu318 | 13 Aug, 2020, 08:09: PM
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CBSE 12-science - Maths
A ladder 17 metre long is leaning against the wall. The base of the ladder is pulled away from the wall at a rate of 5m/s. When the base of the ladder is 8 metres from the wall, i) How fast is the top of the ladder moving down the wall? ii) At what rate, the area of the triangle formed by the ladder, wall, and the floor, is changing ?
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CBSE 12-science - Maths
Differentiate Sin x
Asked by givduf | 11 Jul, 2020, 09:00: AM
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CBSE 12-science - Maths
the height of a right circular cone is 24 cm whose curved surface area is 550 cm square .find it's volume
Asked by clbalaji.cnhalli | 05 Feb, 2020, 08:30: PM
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CBSE 12-science - Maths
Fimd the point of local maxima and local minima and corresponding local maxima and local minima values of each of the following funct. F(x) = x^3 -2ax^2 a^2x, a>0 ,x belongs to real no.
Asked by Ronitupadhyay13 | 20 Dec, 2019, 12:28: AM
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CBSE 12-science - Maths
What will be the answer for this question?
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Asked by dineshchem108 | 09 Oct, 2019, 07:04: PM
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