Question
In an examination, the marks obtained by Arun and Akram
are in the ratio of 2:3. Arun’s score is 26 marks below the passing threshold, while Akram’s score exceeds the passing mark by 16. Additionally, Arjun scored 46 marks above the passing mark in the same examination. Determine the ratio of Arjun’s marks to Arun’s marks.Solution
Let the pass marks be 'x' Then, marks scored by Arun = (x - 26) Marks scored by Akram = (x + 16) According to the question, (x - 26):(x + 16) = 2:3 Or, 3x - 78 = 2x + 32 Or, x = 110 Marks scored by Arjun = 110 + 46 = 156 Marks scored by Arun = 110 - 26 = 84 So, required ratio = 156:84 = 13:7Â
Ozone layer which absorbs and scatters the solar ultraviolet radiation is present in which layer of atmosphere?
Which of the following is a common symptom of plant disease?
Which was first Indian dwarf amber grained variety of wheat made from Sonara 64 by γ –gamma rays
Most predominant cropping system in India is
Rice is believed to be originated from:
Name the chemical which is used for protoplast fusion
Who is known as the father of economics?
Soils with Bulk density 1.325g/cc and Particle density of 2.65 g/cc consist of a total porosity of:
Chemosterilants are the chemical compound used to control economically destructive or disease-causing pests by causing
Weeds which are of no use and does not have any economic value are known as
