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 company signed an MoU with RINL for the supply of lubricants from 2024 to 2029?
Who served as the spiritual mentor to Chhatrapati Shivaji Maharaj?
By which date had 4,74,447 marriage registrations been completed under the Uniform Civil Code in Uttarakhand?
India renewed its agreement with Pakistan in October 2024 to maintain access to which Sikh pilgrimage site?
In a move to enhance security, integrity and privacy of financial sector data and bring transparency on fintechs in the country, the Reserve Bank of Ind...
How many wickets did Amit Mishra take in his Test career?
Which of the following private sector firm has recently launched its super app Meta Market for Advanced Agricultural Services to provide agricultural an...
- Katy Perry’s space flight aboard Blue Origin’s New Shepard rocket lasted approximately how long?
In which state will the 69th edition of the Filmfare Awards be organized in the year 2024?
Nepal launched its inaugural Rainbow Tourism Conference in ____, focusing on promoting inclusive travel for LGBTQ+ tourists.
Relevant for Exams:
