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When E and R are fixed as first and last letters of the word, then we have only 6 letters to be arranged. Hence required number of ways = (6 !)/(2 !) = 360
If the price of petrol rises by 20%, what percentage reduction in consumption is required to keep the expenditure unchanged?
On Wednesday, the price of tomatoes increased by x% as compared to Tuesday and the price of tomatoes decreased by x/2% on Tuesday as compared to Monday....
There were two candidate in an election. 15% of the total voters did not cast their votes whereas 10% of the casting votes were declared invalid. If th...
Rajesh spent 30% and 24% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 20% and 25% to his mother and brother, r...
A man spends 40% of his income on rent, 30% on food, and 20% on other expenses. He saves the remaining ₹12,000. What is his total income?
In a competitive exam, the passing percentage is 40%. Marks obtained by ‘A’ is 10% less than passing marks, and ‘B’ scores 20% marks less than A...
In each population, 30% of the population is affected with asthma out of which 90% of asthma patients used to work in flour mills. If 30% of the total p...
Suyash have total amount of Rs.2100 out of which, he spent 15% on food, 40% of the rest on travelling. Out of remaining amount he spends Rs.400 on misce...
A spent 20% of his monthly income on study and 72% of the remaining on rent. If amount spent on rent is Rs. 2016, then find the amount spent on study
