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According to this formula Average of cubes = n(n+1) ² /4 =7(7+1) ² /4 =7 ×64/4 =112
From Ravi's monthly income, he spends 30% on rent and then 25% of the remaining on household items. After that, he uses 40% of the remaining money on ut...
Out of his total monthly salary, a man spends 20% on transportation and 40% on food. Out of the remaining salary, he spends 10% on fuel and saves the re...
'B' distributes 65% of his total earnings among his father, mother, and sister in the ratio of 5:4:3. If his sister's share is Rs. 1,950, what is B's to...
Average income of 'Ishan' and 'John' together is Rs. 60,000. Whereas the average expenditure of 'Ishan' and 'John' is Rs. 38,000....
Average income of 'P' and 'Q' together is Rs. 50,000. Where as the average expenditure of 'P' and 'Q' is Rs. 32,000. Find the sav...
Shreya uses up 70% of her income for expenses and is left with Rs. 4,500. Calculate her total monthly income.
The income of 'E' is Rs. 50,000 while the income of 'F' is 20% more than that of 'E'. The ratio of expenditure and savings of 'E' is 2:3, respectively. ...
