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(x + 1/x) = 5 On cubing both sides: x3 + 1/x3 + 3*x*1/x(x + 1/x) = 125 ⇒ x3 + 1/x3 = 125 – 3*5 = 110
A number reduced by 33% becomes 335. What percent should it be increased so that it becomes 950?
Monthly income of A is Rs. 6500 and he saves 36% of his monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is inc...
Sachin allocates 40% of his monthly income to his studies. From what remains, he spends 35% on food. After these expenses,he saves Rs. 1560 each month. ...
The respective ratio of monthly income of A to monthly income of B is 9:10, and A’s saving is (100/11)% more than B’s saving. Find the savings of A,...
Monthly savings of ‘A’ is Rs. 1000 more than his monthly expenditure and his total monthly income is Rs. 8200. If his monthly income is increased by...
Income of A is 55% of the Income of B and A together. The saving of B is 32% of his Income and equals to Rs. 8100. Find the difference between the incom...
A spent 25% of his monthly income on study and 70% of the remaining on rent. If amount spent on rent is Rs. 2016, then find the amount spent on study
