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
What is the main purpose of the 'Social Security Agreement' signed between India and Argentina?
Which company has launched a digital platform offering various financial services to its customers through a single application named 'FinCorp ONE', the...
How many goals did Olivier Giroud score in his international career for France?
The second cohort of the startup labs in India has been announced in partnership with Anymind Group and T-Hub which is a three-month-long programme aims...
Who is the chairman of reconstitute SEBI's alternative investment policy advisory committee, which advises the capital markets regulator on various matt...
- The autobiography "Dalithan" was authored by which social activist?
What is the indigenous content percentage in the Tejas Mk-1A aircraft?
The issue price of the Sovereign Gold Bonds 2022-23 (Series IV) during the subscription period shall be ______ per gram.
Ministry of culture in collaboration with the Ministry of Textile inaugurated Jharokha in ______?
Recently who was appointed as the new CEO of NITI Ayog?
Relevant for Exams:
