Question
Rohit and Karan can complete a work alone in 64 days and
80 days respectively. Working together they earn Rs. 7,200. How much does Karan get?Solution
ATQ,
Ratio of efficiency = reciprocal of days.
Ratio of efficiency of Rohit and Karan = 80:64 = 5:4
So, ratio of wages = 5:4
Karan’s wage = (4/9) × 7,200 = Rs. 3,200
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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:
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