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question_answer1) The population of the city increases by 8% in the first year and decreases by 8% during the next year and in the third year it again increases by 10%. Find the population of the city at the end of third year if initially it was 100000.
question_answer2) There are 600 cats in a village, and 150 of them are black, 130 of them are brown, 180 of them are white and rest of them are of mixed colours. What is the percentage of mixed colour cats in the village?
question_answer3) David is paid Rs. 800 for 100 hours a week as a basic pay and over time is paid 50% above the basic pay. If David gets Rs. 1000 as a salary at the end of the week including the over time, then for how many hours does he work in the entire week?
question_answer4) Katrina spends 30% of her salary on fooding, 20% of remaining on house rent, 20% of the remaining on the education of the children, donates 10% of her salary to charity or temples and remaining for her savings. If her monthly saving is Rs. 6500, then her monthly salary is:
question_answer5) Astel works in a laboratory where the various tests like blood test, urine test, are carried out and for this he needs to use some dilute alcohol. If he is provided with 800 ml of 30% of alcohol and he needs solutions containing 64% of the alcohol for the test to be performed then how much pure alcohol he needs to mixed in the given solution to make it 32%?
question_answer6) Two neighbours work in the same factory for the different posts, so their salaries are also different. If the salary of one individual is 50% more than other then by what percent others salary is of first salary?
question_answer7) Thomas asked Harry to think on the two numbers such that 20% of the greater number is equal to the 30% of the smaller number. If Harry said that the sum of two numbers is 75, then the greater number he thinks of is:
question_answer8) Four friends Robert, Thomas, Jack and Mary works in the same factory, and if their salary is as follows: Salary of Robert is 10% less than Thomas and Thomas gets 25% less than Jack and Jack gets 20% less than Mary and the salary of Robert is Rs. 3600, then find the salary received by Mary.
question_answer9) If the population of the city increases at the rate of 4% per annum but decreases due to immigration to the extent of 0.5%, then the increase percent after three year will be;
question_answer10) The number of people living in an apartment is 2500. The 20% of working people are males and rest are females. If 5% of the male are working as a grade B officers and 40% of the females working as a grade B officer, then find the percentage of people working as a grade A officers.
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