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Let the common ratio be x. Hence, four years ago, the ages of the father and his son were 7x and 2x years. According to the question, (7x+4+4)/ (2x + 4 + 4) = 9:4 28x+ 32 = 18x + 72 10x = 40 x=4 Present age Father = 7x + 4 = 7 x 4 + 4 = 32 Son = 2x + 4 = 2 x 4 + 4 = 12 After P years the father's age will be twice the age of his son. According to the question, 32 + P = 2 x (12 + P) P = 8 year
Movement of leaves of sensitive plant, Mimosa pudica are due to
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___ variety of mango is most susceptible to Spongy tissue.
Grubs of Holotrichia consanguinea feed on
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Phenyl mercuric acetate (PMA) is a ______ of antitranspirant.
Which crop is sensitive both to drought and excessive moisture condition?
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...Agranal chloroplasts are found in _____
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