Question
Abhishek's marks in Mathematics were incorrectly entered
as 93 instead of 63. Due to this, the average marks of the class in Mathematics got increased by 0.5. How many students were there in the class?Solution
Increase in total marks = 93 - 63 ⇒ Increase in total marks = 30 Number of students = Increase in total marks / Increase in average ⇒ Number of students = 30 / 0.5 ⇒ Number of students = 60
What is the name of the protein digesting enzyme released by the gastric glands?
The method of protecting iron from rusting, by coating a thin layer of Zinc is called -
Which of the following devices stores electrical energy in a magnetic field?
Which one of the following wave- lengths of light is most effective in photosynthesis?
What is the work to be done to increase the velocity of a car from 30 km h⁻¹ to 60 km h⁻¹ if the mass of the car is 1500 kg?
Which of the following is a 'Universal Blood Recipient' group?
Which part of cinnamon tree is used in condiments and medicines ?
The anther contains
Which of the following statements for the given chemical reaction is true?
Fe₂ O₃ + 2Al → Al₂ O₃ + 2Fe
What is the function of the red blood cells?
Relevant for Exams:
