Question
Average marks scored by each boy in a class were 90,
whereas that by each girl were 100. If the number of boys is 50% more than the number of girls, then find the average score of each student.Solution
Let the number of girls = 2x.
Thus, the number of boys = 3x. Total marks of boys = 3x × 90 = 270x
Total marks of girls = 2x × 100 = 200x Total marks = 270x + 200x = 470x
Total students = 2x + 3x = 5x Average = 470x ÷ 5x = 94
Bacillus thuringensis was reported by Berliner from____
Which of the following is not a Rabi season crop?
Chromosome number of diploid rice is
Chlorophyll is formed from proto- chlorophyll in light. The proto- chlorophyll lacks two hydrogen atoms one each at _________and _________carbon of ___...
What is the function of a camshaft in an internal combustion engine?
Which of the following is not a principle of plant disease control?
FSSAI has been mandated by the FSS Act, 2006 for performing which of the following functions
Frequencies of the classes are plotted by dots against the mid-points of each class and then the adjacent dots are connected by straight lines be called?
Name the initiative that has been introduced with the aim of promoting the idea of food sharing among citizens and food businesses.
Inulin is a polymer of
Relevant for Exams:
