Question
Two students appeared in an exam and one secured 14
marks more than the other. If marks of student who got more marks is 55% of the sum of the marks of both of them, then find the marks obtained by them.Solution
Let total marks obtained by both of them is x and y respectively. x – y = 14 And, x = 0.55 × (x + y) x = 0.55 × (14 + y + y) x = 0.55 × (14 + 2y) x = 7.7 + 1.1y 14 + y = 7.7 + 1.1y 0.1y = 6.3 y = 63 x = 63 + 14 = 77
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Fertilizers, Pesticides, etc., are examples of
Kew, Queen or Mauritius are varieties of
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_______ is the most widely used chemical for promoting seed germination.
_______is a band within the radial cell walls of endodermis that contain lignin.
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