Question
The cost of fencing a rectangular field at the rate of
Rs. 4/metre is Rs. 360. If the length of the field is 13 metres more than its breadth, then find the length of the rectangular field.Solution
Let the length of the rectangular field be ‘l’ m Breadth of the rectangular field = (l – 13) m Therefore, perimeter of the rectangular field = 2 ×(l + l – 13) = (4l – 26) m According to the question, 4l – 26 = 360/4 Or, 4l = 90 + 26 Or, l = 116/4 = 29 metres
_________is a physical or chemical method of food preservation where all microorganisms present in food are destroyed.
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a.      Better the medium for growth for the microorganisms, more heat resistant are t...
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Substances that reduce the availability of one or more nutrients known as