Question
'A' spends 75% of his income,
while 'K' spends 80% of his income. Both of them save ₹7,500 each. The income of 'S' is one-third of the combined income of 'A' and 'K'. If 'S' spends 7/9 of his income, calculate his savings.Solution
ATQ,
Income of A = (7,500/0.25) = Rs. 30,000 Income of K = (7,500/0.2) = Rs. 37,500 Income of S = (1/3) × (30,000 + 37,500) = Rs. 22,500 Therefore, savings of S = (2/9) × 22,500 = Rs. 5,000
Surrogate keys are used in data warehouses because:
Which analytics type is focused on predicting future outcomes?
Which of these is NOT an ensemble method?
In a star schema, what is the primary characteristic of the fact table?
Fact constellation schema is best described as:
A data cube allows analysis by:
Which of the following is NOT a common OLAP operation?
In ETL pipelines, which step is primarily responsible for resolving inconsistencies and correcting data quality issues (e.g., missing values, inconsiste...
Which of the following best describes a Data Warehouse?
Data warehouse metadata primarily describes:
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