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1. 6 - [5/6 + {3 7/8 - 2 1/3 + 1 7/9}] = ?
2. A library has an average of 510 visitors on Sunday and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is:
3. How many numbers up to 100 and 300 are divisible by 11?
4. In a kilometer race, A beats B by 50 meters or 10 seconds. What time does A take to complete the race?
5. Rajan borrowed Rs.4000 at 5% p.a compound interest. After 2 years, he repaid Rs.2210 and after 2 more year, the balance with interest. What was the total amount that he paid as interest?
6. A gardener wants to plant trees in his garden in such a way that the number of trees in each row should be the same. If there are 4 rows or 5 rows or 6 rows, then no tree will be left. Find the least number of trees required.
7. A dealer purchased an article at 3/4 of its list price and sold 50% more than the list price. Find his gain percent?
8. What is the rate percent when the simple interest on Rs.800 amount to Rs.160 in 4 Years?
9. The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:
10. Sides of a rectangular park are in the ratio 3: 2 and its area is 3750 sq m, the cost of fencing it at 50 ps per meter is?
11. A part of certain sum of money is invested at 9% per annum and the rest at 12% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?
12. 0.003 * ? * 0.0003 = 0.00000027
13. What number has a 5:1 ratio to the number 10?
14. Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time which they take to cross each other is?
15. Two pipes X and Y can separately fill a cistern in 18 and 24 hours respectively. If they are turned on alternately for one hour each, how long will it take to fill the cistern?
16. Simplify the 121 * 175 + 363 * 275
17. If x % of 80 = 20% of y, then x = ? and y = ?
18. An order was placed for the supply of a carper whose length and breadth were in the ratio of 3 : 2. Subsequently, the dimensions of the carpet were altered such that its length and breadth were in the ratio 7 : 3 but were was no change in its parameter. Find the ratio of the areas of the carpets in both the cases.
19. By selling 50 meters of cloth. I gain the selling price of 15 meters. Find the gain percent?
20. The compound and the simple interests on a certain sum at the same rate of interest for two years are Rs.11730 and Rs.10200 respectively. Find the sum.
21. Rs.800 amounts to Rs.920 in 3 years at simple interest. If the interest is increased by 3%, it would amount to how much?
22. A person travels equal distances with speeds of 3 km/hr, 4 km/hr and 5 km/hr and takes a total time of 47 minutes. The total distance is?
23. A dishonest dealer professes to sell his goods at Cost Price but still gets 20% profit by using a false weight. What weight does he substitute for a kilogram?
24. Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is?
25. If 25% of x is 15 less than 15% of 1500, then x is?
26. A candidate who gets 30% of the marks fails by 50 marks. But another candidate who gets 45% marks gets 25 marks more than necessary for passing. Find the number of marks for passing?
27. If population of certain city increases at the rate of 5%. If population in 1981 was 138915, then population in 1978 was?
28.
The smallest number when increased by " 1 " is exactly divisible by 12, 18, 24, 32 and 40 is:
29. A committee has 5 men and 6 women. What are the number of ways of selecting a group of eight persons?
30. A delegation of 5 members has to be formed from 3 ladies and 5 gentlemen. In how many ways the delegation can be formed, if 2 particular ladies are always included in the delegation?
31. What is the least number to be subtracted from 11, 15, 21 and 30 each so that the resultant numbers become proportional?
32. In an election between two candidates A and B, the number of valid votes received by A exceeds those received by B by 15% of the total number of votes polled. If 20% of the votes polled were invalid and a total of 8720 votes were polled, then how many valid votes did B get?
33. If x = 3 - √7, then find the value of x + 1/x.
34. I. a3 - 988 = 343, II. b2 - 72 = 49 to solve both the equations to find the values of a and b?
35. A leak in the bottom of a tank can empty the full tank in 6 hours. An inlet pipe fills water at the rate of 4 liters per minute. When the tank is full in inlet is opened and due to the leak the tank is empties in 8 hours. The capacity of the tank is?
36. The inverse ratio of 3: 2: 1 is?
37. Find the sum The difference between the compound and S.I. on a certain sum of money for 2 years at 10% per annum is Rs.15of money?
38. The ratio between the present ages of P and Q is 6:7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years?
39. Kim can do a work in 3 days while David can do the same work in 2 days. Both of them finish the work together and get Rs. 150. What is the share of Kim?
40. The difference between simple interest and C.I. at the same rate for Rs.5000 for 2 years in Rs.72. The rate of interest is?
41. A can do a piece of work in 4 hours; B and C together can do it in 3 hours, which A and C together can do it in 2 hours. How long will B alone take to do it?
42. 5% people of a village in Sri Lanka died by bombardment, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning?
43. A and B enter into partnership with capital as 7:9. At the end of 8 months, A withdraws. If they receive the profits in the ratio of 8:9 find how long B's capital was used?
44. How many numbers up to 200 are divisible by 2 and 3 both?
45. Aman started a business investing Rs. 70,000. Rakhi joined him after six months with an amount of Rs. 1,05,000 and Sagar joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio among Aman, Rakhi and Sagar respectively, 3 years after Aman started the business?
46. The diameter of a cylindrical tin is 6cm and height is 5 cm. Find the volume of the cylinder?
47. In a 1000 m race, A beats B by 200 meters or 25 seconds. Find the speed of B?
48. A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15?
49. Find the number of square tiles to cover the floor of a room measuring 4 m * 9 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms?
50. A tradesman by means of his false balance defrauds to the extent of 20%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?
