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Ask QuestionPosted by Learning Girl 4 years, 11 months ago
- 1 answers
Gaurav Seth 4 years, 11 months ago
Total number of students=340
Percentage of science student=55%
Percentage of commerce student=(100-55)%
=45%
Number of commerce student=45/100*340
=153
Or
Number of Science students
= 340 x 55 / 100 = 187.
∴ Number of students of Commerce
= 340 – 187 = 153.
Posted by Desai Haresh 4 years, 11 months ago
- 5 answers
Posted by Tanupreet Kaur 4 years, 11 months ago
- 3 answers
Nakshi Shah 4 years, 11 months ago
Gaurav Seth 4 years, 11 months ago
let the breadth be x
let the length be x+8
perimeter of rectangle=2 (length +breadth)
so, 2 (x+x+8)=44cm
=2 (2x+8)=44
=4x + 16=44
=4x= 44-16
=4x= 28
=x = 28÷4
=x= 7
therefore,
breadth is 7 (x)
length is 7+8 (x+8)
=15
Posted by Tanupreet Kaur 4 years, 11 months ago
- 1 answers
Aryaman Pandey 4 years, 11 months ago
Posted by Patel Diya 4 years, 11 months ago
- 1 answers
Posted by Mohit Taneja 4 years, 11 months ago
- 2 answers
Posted by Anu Singh 4 years, 11 months ago
- 1 answers
Yogita Ingle 4 years, 11 months ago
49x² – 36
=(7x)2 –(6)2
So from third identity, it can be written as
=(7x-6)( 7x+6)
Posted by Anu Singh 4 years, 11 months ago
- 1 answers
Yogita Ingle 4 years, 11 months ago
4p² – 9q²
=(2p)2 –(3q)2
So from third identity, it can be written as a2 –b2 = (a-b)(a+b)
=(2p-3q)( 2p+3q)
Posted by Anu Singh 4 years, 11 months ago
- 5 answers
Posted by Jeet Patel 4 years, 11 months ago
- 3 answers
Posted by Kuldeep Bishnoi 5 years ago
- 1 answers
Posted by Parul Pragya 5 years ago
- 3 answers
Anu Singh 4 years, 11 months ago
Yogita Ingle 5 years ago
Estimate 1397 to the nearest thousands
The nearest thousands of 1397 is 1000
Posted by Piyush Ranjan Patra 5 years ago
- 1 answers
Posted by Neha Sharma 5 years ago
- 0 answers
Posted by V.Bavana Bavana 4 years, 11 months ago
- 1 answers
Yogita Ingle 5 years ago
a +2x-1 +5 = 0
a + 2(-3) - 1 + 5 = 0
a - 6 + 4= 0
a - 2= 0
a = 2
Posted by Shrishti Rawat 5 years ago
- 1 answers
Yogita Ingle 5 years ago
(l+m)2-4lm
= l2 + 2lm + m2 - 4lm
= l2 + m2 + 2lm - 4lm
= l2 + m2 - 2lm
Posted by Ankit Chand 5 years ago
- 3 answers
Posted by Preeti Vishwani 5 years ago
- 0 answers
Posted by Aarsuhi Saini 5 years ago
- 1 answers
Posted by Aarsuhi Saini 5 years ago
- 5 answers
Posted by Sundram Jha 5 years ago
- 1 answers
Yogita Ingle 5 years ago
Rate of flow of water = 60 litres/minute
Volume of the tank = 108 m3
1 m3 = 1000 litres
108 m3= 108000 litres
Time taken to fill the complete tank = 108000/60 = 1800 minutes = 1800/60 hours = 30 hours
The tank will be filled completely in 30 hours.
Posted by Sundram Jha 5 years ago
- 1 answers
Yogita Ingle 5 years ago
Area of cross section of river = 10×100 =1000sqm
Volume of water flow in 1 hour = Area of cross section ×Speed of water flow
V=1000× 4.5 km/h
V= 1000 ×4.5 ×5/18 m/sec
V=1250 m^3
1m ^3 =1000 liter
1250 m^3 = 1000×1250= 1250000 liter in 1 sec
Posted by Sundram Jha 5 years ago
- 1 answers
Yogita Ingle 5 years ago
Diameter of tank = 42 cm
Radius of tank =
Height of tank = 12 cm
Volume of cylindrical tank =
Length of rectangular tank = 44 cm
Breadth of tank = 42 cm
Let the height be h
So, Volume of rectangular tank =
So,
Hence The height to which water rise in the tank is 9 cm
Posted by Sundram Jha 5 years ago
- 1 answers
Yogita Ingle 5 years ago
35000 litres = 35000÷1000 =35 m3
depth = volume ÷ l×b
= 35÷7×2.5
=5÷2.5
= 2 m
Posted by Sundram Jha 5 years ago
- 1 answers
Yogita Ingle 5 years ago
Volume of cylinder with radius r and height h is given by
V = πr²h
It is given that,a cylindrical candle has base radius 3.5
The volume of cylindrical candle = 308 cm cube
To find the height of candle
Volume of candle is given by
V = πr²h
308 = 3.14 x 3.5 x 3.5 x h
h = 8cm
Therefore the height of cylindrical candle= 8 cm
Posted by Sundram Jha 5 years ago
- 2 answers
Yogita Ingle 5 years ago
Given the three cubes of metal whose side are 3 cm , 4 cm and 5 cm
Then volume of cube who side 3 cm=(3)3=27cm3
And volume of cube who side 4 cm=(4)3=64cm3
And volume of cube who side 5 cm=(5)3=125cm3
Total volume of melted cube=27+64+125=216cm3
Then the side of new cube=a3=216
⇒a=6cm
Gaurav Seth 5 years ago
vol. of larger metal cube = vol. of three smaller cubes
=(3)³ + 4³ + 5³
= 27 + 64 + 125
= 216 cm³
vol.of larger metal cube = 216 cm³
(a)³ = 216 cm³
a³ = 6³
a = 6 cm
therefore edge of larger metal cube is 6 cm
Posted by Tania Sharma 5 years ago
- 0 answers
Posted by Pragati Bansode 5 years ago
- 2 answers
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Gaurav Seth 4 years, 11 months ago
Q: Water flows out through a circular pipe whose internal diameter is 2 cm @ 6 m/ s into a cyl. tank, the radius of whose base is 60 cm,find the rise in level of water in 30 mins ?
A n s w e r:
Ans
1Thank You