Question
A class of 50 students has an average Chemistry exam
score of 65. There average of boys and girls are 3: 2 in the class. Boys have an average score of 73. If 5 girls, each with a score of 62, leave the class, what will be the new average score for the remaining girls?Solution
Total marks obtained by all 50 students = 50×65 = 3250 Number of Girls = 2/5 of 50 = 20 Number of boys = 30 Total marks obtained by Boys = 30×73 = 2190 Marks obtained by girls = 3250-2190 = 1060 Marks of 5 girls who were to leave the class = 5 × 62 = 310 Remaining marks of 15 girls = 1060-310 = 750 New average marks of the girls = 750/15 = 50
Which Article of the Constitution of India expressly provides that the President is eligible for re-election?
The pH of a neutral solution is _________ on the pH scale.
Which one of the following States of India has maximum area of saline soil?
The Is of Doing Business Report does not determine the regulators who affect __________.
Who among the following is the author of the book The Indian Struggle'?
According to 2011 Census, which state has the highest education rate in India?
In his writings Kalidasa refers "Gauri Guru" to which of the Garhwal Himalayas ?
Among the following options, which three stockbroking firms are considered among the top in India?
Tabla player, Ustad Zakir Hussain was awarded which of the following awards by the Government of India in 2023?
What is the phenomenon of organisms in which female genome develops to form new creatures without fertilization?
Relevant for Exams:
