# Posts by Reshma

Total # Posts: 20

**general**

RIDDLE:-! I like to twirl my body,but i keep my head up high,when i go in everything tight.what am I

**math**

A cubical water tank has edge 5m long. Find the volume of water in the tank if 1/5th of the tank is empty. Write down the equation of the line whose gradient is 3/2 and which passes through P, where P divides the line segment joining A(-2,6) and B(3,-4) in the ratio 2:3. Pls ...

**maths**

in a two digit number the unit digit is one more than twice the ten's digit if the order of the digit is reversd the new number is 36 more than the given number find the number

**maths**

if A=(3,5) and B=(4,1).find the equation of locus of point p which are equidistant from points A and B

**math**

(3+/3) (2+/2)

**math**

on a map of scale 1:20,000 the area of forest is 50cm^2 .on another map the area of forest is 8cm^2.find the scale of the second map.

**math**

1) on a map of scale 1cm to 250m the area of car park is 3cm^2.what is the actual area of the car park in hecares(1 hectare= 10,000m^2) 2)The area of the playing surface at wembly stadium is 3/5 of a hectare . what area willit occupy on a plan drawn to a scale of 1:500?

**math**

1) the scale of map is 1:1000 .what is the area ,in cmsquare,on the map of a lake of area 5,000msquare? 2)the scale of a map is 1cm to 5km .a farm is represented by a rectangle measuring 1.5 cm by 4cm. what is the actual area of the farm

**Math**

A company owns office cars worth a total $587,000.The cars are depreciated by 12% of a year .For 10 year what is the expected value of the cars at the end of 10 years ?

**Math**

1)Forty solid hemisphere each of diameter 2cm , are melted to form a solid cone with a base diameter 6cm .Find the height of the cone? 2)A pyramid has a square base of side 12cm and a height of 15cm .Calculate its volume and total surface area?

**GEOMETRY**

The present height of the pyramid of Khafre in Egypt is 137m.An engineer surveying pyramid measures an angle of elevation of 33degrees from a point X to the top of the pyramid. Calculate the distance from X to the cenre of the base of the pyramid at Y

**geometry**

Two cyclists set off at the same time from a point o .Cyclist p head east with a velocity of 20km/hr. Cyclist Q heads with a velocity of 16km/h .After 45 min they both stop calculate a) the distance they have each travelled in 45 min . b) the distance ox after 45min c) the ...

**geometry**

Side of cube=6cm Sphere is placed in cube.Calculate volume of cube.Calculate volume of sphere.What percentage of the space in the cube does the sphere occupy?

**GEOMETRY**

Sphere and hemisphere have same volume. Radius of sphere =7cm

**geometry**

An object is made from a cylinder with a hemisphere at each end.r=5cm, height=12 .Calculate volume.

**math 3rd grade**

right is right answer.

**physics**

A body cools from 50 degree celcious to 49 degree celcious in 5 seconds. How long will it take to cool from 40 degree celcious to 39 degree celcious? ( assume temperature of surroundings to be 30 degree celcious and newtons law of cooling is valid)

**probability**

An insurer offers a health plan to the employees of a large company. As part of this plan, the individual employees may choose two of the supplementary covaerges A, B and C or they may choose no supplementary coverage. The proportions of the company's employees that choose...

**probability**

An insurer offers a health plan to the employees of a large company. As part of this plan, the individual employees may choose two of the supplementary covaerges A, B and C or they may choose no supplementary coverage. The proportions of the company's employees that choose...

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