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Total marks obtained by all 50 students = 50×68 = 3400 Number of Girls = 2/5 of 50 = 20 Number of boys = 30 Total marks obtained by Boys = 30×70 = 2100 Marks obtained by girls = 3400-2100 = 1300 Average of Girls marks = 1300/20 = 65
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A semicircular sheet of metal of diameter 20cm is bent into an open conical cup. the capacity of the cup is. Use π = 22/7
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If the circumference of a circle is 308 cm then find the area of the circle?
Area of a rectangle is equal to the total surface area of a hemisphere having volume 4394 cm³ . Find the perimeter of the rectangle if its length is 12...
Rahul spends some part of his income and saves the remaining part. The ratio of his expenditure and saving is 3 : 4 respectively. If Rahul’s income i...
If the area of a triangle is 1014 cm2 and base: corresponding altitude is 3:4, then the altitude of the triangle is:
If the curved surface area and the radius of a cylinder are 660 cm2 and 14 cm, respectively, then find the volume (in cm3) of the ...
Area of a rectangle is equal to the total surface area of a hemisphere having volume 8192 cm³. Find the perimeter of the rectangle if its length is 125...
