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Let, rate of interest be ‘r’% per annum So, 903 = 2800 × {(1 + r/100)2 – 1} 129/400 = {(1 + r/100)2 – 1} 529/400 = (1 + r/100)2 (23/20)2 = (1 + r/100)2 23/20 = 1 + r/100 3/20 = r/100, r = 15 So, simple interest earned = 3200 × 0.15 × 2 = Rs. 960 Required amount = 960 – 903 = Rs. 57
If ∆ ABC~∆ FDE such that AB = 9 cm, AC = 11 cm, DF = 16 cm and DE = 12 cm, then the length of BC is:
Area of a rectangle is equal to the total surface area of a hemisphere having volume 9826 cm³ . Find the perimeter of the rectangle if its length is 12...
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There is a carpet of length 20 m. How many small pieces of carpet, each of length 4 m, can be cut out of it?
If the circumference of a circle is 308 cm then find the area of the circle?
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The volume of cone is 2138.4 cm3. If its height is 2.8 cm then find the radius of the cone.
A wooden box measures 20cm by 12cm by 10cm. Thickness of wood is 1 cm. volume of wood to make the box is.
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