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No. of when Geography book are always together = 7! × 6! Total no. of ways when all the books are arranged without any condition = 12! No. of when Geography book are never together = 12! – (7! × 6!)
If 20% of (A + B) = 30% of (A – B), then what percentage of B is equal to A?
Out of a total of 200 students in a class, 60% are boys and the rest are girls. Out of the total number of students who appeared in the class test, 25% ...
In an exam, Aman scored 60% marks and failed by 85 marks whereas Raj scored 80% marks in the same exam and scored 65 marks more than the passing marks. ...
The monthly salary of Harshita and Himani together is Rs.72225. The salary of Harshita and Himani is increased by 15% and 20% respe...
A gave 40% of amount to B. B gave 30% of amount received from A to C. If amount received by C from B is Rs.144, then find the amount received by B from A.
Rakesh obtained 25% more marks than Ambuj Suresh obtained 52% less marks than Rakesh. Marks obtained by Suresh are what percent less than marks obtained...
The marks scored by a boy in three subjects are in the ratio 2 : 3 : 5. Boy scored an overall aggregate of 60% in the exam. If the maximum marks in each...
In a colony, there are 110 APL families and 50 BPL families. Each APL and BPL family got blankets equal to 20% and 75%, respectively of total number of ...
Arvind spends 30% of his salary on travelling and 25 % on car fuel. If he spends 10% of his remaining salary on food and saves the rest, then What will ...
A spent 25% of his monthly income on study and 60% of the remaining on rent. If amount spent on rent is Rs. 945, then find the amount spent on study
