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## Maximum value of 2x+3y

If (x,y) lies on a circle of a radius 5 with the origin as its center, find the maximum value of (2x + 3y) Rate the problemHelpful (1)Spam (0)Hard (0)Wow (0)
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## How many coins can cover the entire table?

A rectangular table has 100 coins placed on it (centers must be on the table) such that none of the coins overlap, and it is impossible to place any...

## Find the angles of cyclic quadrilateral In the given figure, calculate each of the angles of the cyclic quadrilateral ABCD. Given angle AOD = 64 deg. Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Parallelogram

Find the area of a parallelogram with base 24 m and height 17 m. A.  408                          ...
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## CUBOID

The areas of three adjacent faces of cuboids are 108 cube cm , 72 cube cm and 96 cube cm respectively .Find the volume of cuboid . Also find...
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## CONE

Calculate the curved surface area and total surface area of a cone , whose radius of the base and height are in ratio 5:12 and its volume is  ...
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## CYLINDER

A well with 7 m diameter is 10 m deep . Find the cost of plastering the inner curved surface at the rate of RS 30 per m sq....
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## Geometry

Find out the difference between the largest and smallest angles of the quadrilateral if the ratio of the three angles of it as 3:4:5 respectively and the value of...
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## Triangle

A girl of height 90 cm is walking away from the base of a lamp-post at a speed of m/s . If the lamp is m above...
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## GEOMETRY

A Copper rod of  diameter 1 cm and length 8 cm is drawn into a wire of length  18 cm of uniform thickness . Find the thickness of the...
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## GEOMETTRY

How many silver coins , cm in diameter and of thickness 2 mm, must be melted form a cuboid of dimensions. Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## angles

A clock is started at noon. By 10 minutes past 5, the hour hand has turned through: a. 145 deg b. 150 deg c. 155 deg d. 160 deg...
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## Geometry

Find the area of a right-angled triangle, if the radius of its circum-circle is m and the altitude drawn to the hypotenuse is 6 cm long. Rate...
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