Question
Out of his total income, Rahul spent 25% on rent, 35% of
the remaining income on groceries, and saved 60% of the income left after his expenses.Solution
ATQ, Let the income of Rahul = Rs. '100y' Amount remaining with Rahul after his expenses on rent = 100y - 100y × 0.25 = Rs. '75y' Amount remaining with Rahul after his expenses on groceries = 75y - 75y × 0.35 = Rs. '48.75y' Amount saved by Rahul = 48.75y × 0.6 = Rs. '29.25y' If 29.25y = 58500, So, income of Rahul = 58500 × (100y / 29.25y) = Rs.2,00,000
Which of the following best defines the concept of the "Internet of Things" (IoT)?
Which schema in data warehousing uses a central fact table connected to dimension tables?
Data warehouse metadata primarily describes:
Which type of slowly changing dimension (SCD) preserves full history by adding a new row for each change and using effective date ranges?
Which of these is NOT an ensemble method?
In a snowflake schema of a data warehouse, which of the following consequences is most likely as a result of normalization of dimension tables?
Which OLAP operation involves focusing on a subset of dimensions (e.g., region=‘Asia’)?
ETL stands for:
Which SQL keyword is used to combine results from two queries and remove duplicates?
Data cleansing is primarily concerned with:
