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WBCS MATH SET-1, 1. The ratio of Velocity of hour’s hand and minute’s hand at a clock is, (A) 1 : 12, (B) 12 : 1, (C) 1 : 24, (D) 24 : 1, 2. In an examination it is required to get 310 at the aggregate marks to, pass. A student gets 28% mark and is declared failed by 93 marks. What are, the maximum aggregate marks a student can get ?, (A) 685, (B) 765, (C) 775, (D) 875, 3. A man bought a house for Rs.5 lakhs and rents it. He puts 12 1/2% of, each month’s rent aside for repairs, pays Rs.1660 as annual taxes and, realises 10% on his investment thereafter. The monthly rent of the house is, (A) Rs. 2460, (B) Rs. 2500, (C) Rs.4920, (D) Rs.5000, 4. A trader mixes three varieties of groundnuts costing Rs. 50, Rs. 20 and, Rs. 30 per kg. in the ratio 2 : 4 : 3 in terms of weight and sells the mixture at, Rs. 33 per kg. What percentage of profit does he make ?, (A) 8%, (B) 9%, (C) 10%, (D) None of the above, 5. Which of the following ratios is greatest ?, (A) 7 : 15, (B) 15 : 23, (C) 17 : 25, (D) 21 : 29, 6. If the edge of a cube is increased by 25% then percentage increase in its, surface area is (x + y + xy /100 ), (A) 25%, (B) 48.75%, (C) 50%, (D) 56.25%

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7. Sushant spent 18% of his monthly salary on buying electronic goods and, 32% of the monthly salary on repair work in his house. Out of remaining, amount he invested 42% in fixed deposit. If he was left with Rs. 12,325, how, much is his annual salary ?, (A) Rs. 5,18,000, (B) Rs. 5,15,600, (C) Rs. 5,10,000, (D) Rs. 5,01,000, 8. Present age of Neha and Rashmi are in the ratio of 7 : 8 respectively. Six, years hence, the ratio of their ages will become 9 : 10 respectively. What is, Rashmi’s present age ?, (A) 36, (B) 24, (C) 28, (D) 40, 9. A survey shows that 73% of the Indians like apples, whereas 65% like, oranges. What percentage of Indians like both apples and oranges ?, (A) 83%, (B) 8%, (C) 38%, (D) 35%, 10. A man saved Rs. 16,500 in 10 years. In each year after the first year he, saved Rs. 100 more than he did in the preceding year. How much did he, save in the first year ?, (A) Rs.1200, (B) Rs.1650, (C) Rs.1000, (D) Rs.1020, 11. If an amount of Rs.84,105 is distributed equally amongst 35 children., How much amount would each child get ?, (A) Rs.2,430, (B) Rs.2,043, (C) Rs.2,403, (D) None of the above, 12. Total price of 6 shirts and 7 trousers is Rs.4,130 while that of 4 shirts and, 9 trousers is Rs.4,270. Find out the price of 3 shirts., (A) Rs.850, (B) Rs.840, (C) Rs.860, (D) Rs.810

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13. Rohan appeared for the Global Talent Search Examination wherein 4, marks are awarded for every correct answer and 1 mark is deducted for, every wrong answer. Rohan attempted all the 60 questions and secured 130, marks. What would have been his score if there was no negative marking ?, (A) 140, (B) 152, (C) 160, (D) 168, 14. It costs Rupee 1 to photocopy a sheet of paper. However 2% discount is, allowed on all photocopies done after first 1000 sheets. The discount, increases to 5% for all photocopies exceeding 2500 sheets. How much will it, cost to copy 5000 sheets of paper ?, (A) Rs.4845, (B) Rs. 4870, (C) Rs.4920, (D) None of the above, 15. A milkman mixed water with 60 litres of pure milk and sold the mixture at the cost, price thereby made a profit of 25%. Find the quantity of water in the mixture., (A) 12 litres, (B) 15 litres, (C) 10 litres, (D) 14 litres