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01.  Two numbers A and B are such that the sum of 5% of A and 4% of B is twothird of the sum of 6% of A and 8% of B. Find the ratio of A : B.  

02.  1 litre of water is evaporated from 6 litres of sugar solution containing 4% of sugar. Find the percentage of sugar remaining in the solution  

03.  In an examination the maximum marks is 500. A scores 10% less than B, B scores 25% more than C and C scores 20% less than D. if a scored 260, what percentage of the maximum marks did D get?  

04.  The population of a town decreases at the rate of 5% every year. If the population of the town 2 years from now would be 902500, then what is the population of the town at present?  

05.  A candidate secured 20% marks in an examination and failed by 10 marks. Another secured 42% marks and got 1 mark more than the marks required to pass the examination. Determine the maximum possible marks in the test?  

06.  If price of sugar falls by 10%, how many quintals can be bought for the same money which was sufficient to buy 18 quintals at the higher price?  

07.  The length of a rectangle is decreased by 5 % and its breadth is increased by 5%. What is the percentage change in the area of the rectangle?  

08.  Aâ€™s salary is 20% below Bâ€™s salary. By how much percent is Bâ€™s salary above A?  

09.  If 60% of the students in a school are boys and the number of girls is 812, how many students are there in the school?  

10.  Find the single discount which is equivalent to successive discounts of 20%, 15% and 10%.  
