Question
In a school, the average number of books that some
numbers of boys have is 100 and average number of books that some numbers of girls have is 70. If each boy have 5 books then the average numbers of books with all the students become 80. The total number of boys is what percentage of the total number of students in that school?Solution
Let the total number of boys be x. and the total number of girls be y. The total number of books boys have = 100x The total number of books the girls have = 70y If each of the boy have 5 books, then the remaining number of books = 100x – 5x = 95x The sum of the all the books = 80(x + y) = 95x + 70y 10y = 15x x : y = 2 : 3 Required % = (2/5) × 100 = 40%
An e-commerce company wants to understand the trend of holiday season sales over the past decade to forecast future sales. Which analysis method should ...
Which of the following scenarios illustrates runtime polymorphism?
Which of the following scenarios most justifies the use of Big Data over Traditional Data?
Which of the following IoT protocols is specifically designed for low-power, low-bandwidth communication between IoT devices?
In a dataset with outliers, which measure is more robust than the mean?
Which of the following is true regarding the use of pivot tables in Excel for data analysis?
Which Business Intelligence tool is renowned for its interactive dashboards and visualization capabilities, commonly used in corporate reporting and dat...
When integrating multiple datasets, which approach helps resolve inconsistencies and create uniformity across all data sources?
In requirement analysis, which of the following best defines functional requirements?
Which type of software testing focuses on the internal structure and logic of the code rather than its functionality?
