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 = 13:7
If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this?
India tops the world in production of
What is the full form of DNA?
What type of immunity is provided by vaccination?
An ice block with a piece of lead embedded in it floats in water. If ice melts the water level –
The SI unit of angular momentum is equivalent to which of the following?
The pressure inside a soap bubble is 3 Pa more than atmospheric pressure. Surface tension is 0.03 N/m. Find radius.
What is the product of the reaction?
CH₃COOH + CH₃OH → (H⁺, heat)
Which of the following statements for the given chemical reaction is true?
Fe2O3 + 2Al
Which vitamin can be synthesized in the liver?