Quantitative Aptitude Questions with answers and Solutions for SSC CPO- SI in CPMF Exam. Maths MCQs Mock Test for free online practice of SI CAPF Exam.
Practice Set : Mathematics (Quantitative Aptitude)
Questions : 50
Medium : English
Level : SSC CPO SI Exam
All Type and topic MCQs – Solved by short tricks
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#1. The first odd number is 1, the second odd number is 3, the third odd number is 5 and so on. The 200th odd number is :
#2. The mean value of 20 observations was found to be 75, but later on it was detected that 97 was misread as 79. Find the correct mean.
#3. Given that 12 + 22 + 32 + … + 202 = 2870. Then the value of (22 + 42 + 62 + … + 402 ) is :
#4. The sum of the HCF and LCM of two numbers is 680 and the LCM is 84 times the HCF If one of the number is 56, the other is :
#5. The compound interest on a certain sum for 2 year at 10% per annum is Rs 525. The simple interest on the same sum for double the time at half the rate percent per annum is :
#6. A train runs from Howrah to Bandel at an average speed of 20 km/hr and returns at an average speed of 30 km/hr. The average speed (in km/hr) of the train in the whole journey is :
#7. Pick the odd one out from the sequence of numbers. 19, 23, 29, 37, 43, 46, 47 is
#8. The average of 13 results is 70. The average of first seven is 65 and that of the last seven is 75, the seventh result is :
#9. If x is less than y by 25% then y exceeds x by
#10. The quotient when $ 10^{100} $ is divided by $ 5^{75} $ is
#11. An article is sold at a gain of 15%. Had it been sold for Rs 27 more, the profit would have been 20%. The cost price of the article is :
#12. The ratio of the number of boys to that of girls in a village is 3: 2. If 30% of boys and 70% of girls appeared in an examination, the ratio of the number of villagers, appeared in the examination to that not appeared in the same examination is :
#13. A sum of Rs 10,000 lent partly at 8% and remaining at 10% per annum. If the yearly interest on the average is 9.2%, the two parts are :
#14. The average weight of a group of 20 boys was calculated to be 89.4 kg and it was later discovered that one weight was misread as 78 kg instead of 87 kg. The correct average weight is :
#15. A man spends 75% of his income. His income increases by 20% and his expenditure also increases by 10%. The percentage of increase in his savings is :
#16. By walking at $ \frac34 $ of his usual speed, a man reaches his office 20 minutes later than his usual time. The usual time taken by him to reach his office is :
#17. The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers?
#18. The sum 5 + 6 + 7 + 8 + … + 19 is equal to
#19. A 200 metre long train is running at a speed of 72 km/hr. How long will it take to cross 800 metre long bridge?
#20. If 80 persons can finish a work within 16 days by working 6 hours a day, the number of hours a day, should 64 persons work to finish that very job within 15 days is :
#21. Find the unit digit in the product
(4387)245 × (621)72
#22. Sunil completes a work in 4 days, whereas Dinesh completes the work in 6 days. Ramesh works $ 1\frac1 2 $ times as fast as Sunil. The three together can complete the work in :
#23. A train of length 120 m long, takes 6 seconds to pass a telegraph post, the speed of train is :
#24. The fourth proportional to 0.12, 0.21, 8 is :
#25. If the product of first 50 positive consecutive integers be divisible by $ 7^n $ , where n is an integer, then the largest possible value of n is :
#26. A boat goes 20 km downstream in one hour and the same distance upstream in two hours. The speed of the boat in still water is :
#27. The value of is $ 1-\frac{1}{1+\frac{2}{3 + \frac{4}{5}}} $
#28. If the difference between S.I. and C.I. for 2 years on a sum of money lent at 5% is Rs 6, then the sum is :
#29. The total number of prime factors in $ 4^{10}\times{7}^3\times{16}^2\times11\times{10}^2 $ is
#30. if$ \frac{1120}{\sqrt P} $ =80, then P is equal to
#31. The difference between compound and simple interest on a certain sum for 3 years at 5% per annum is Rs 122. The sum is :
#32. Every Sunday, Gin jogs 3 miles. For rest of the week, each day he jogs 1 mile more than the previous day. How many miles Gin jogs in 2 weeks?
#33. A box contains 280 coins of denomination carrying 1 rupee, 50 paise and 25 paise. The values of each kind of the coins are in the ratio of 8 : 4 : 3. Then the number of 50 paise coins is :
#34. If A and B are in the ratio 4 : 5 and the difference of their squares is 81, what is the value of A?
#35. The ratio of two numbers is 3 : 4 and their LCM is 48. The sum of the two numbers is :
#36. A car travels at a speed of 60 km/hr and covers a particular distance in one hour. How long will it take for another car to cover the same distance at 40 km/hr?
#37. The least perfect square, which is divisible by each of 21, 36 and 66 is
#38. A man travelled a certain distance by train at the rate of 25 kmph and walked back at the rate of 4 kmph. If the whole journey took 5 hours 48 minutes, then the distance was :
#39. In two blends of mixed tea, the ratios of Darjeeling and Assam tea are 4 : 7and 2 : 5. The ratio in which these two blends should be mixed to get the ratio of Darjeeling and Assam tea in the new mixture as 6 : 13 is :
#40. Find the value of $ \frac{2}{1+\frac{1}{1-\frac{1}{2}}} \times\frac{3}{\frac56 \text{of} \frac{3}{2} \div 1\frac14} $
#41. If x : y = 3 : 4 and y : z = 3 : 4, then $ \frac {x+y+z} {3z} $ is equal to :
#42. The sum of the squares of three consecutive natural numbers is 2030. Then, what is the middle number?
#43. Krishnan bought a camera and paid 20% less than its original price. He sold it at 40% profit on the price he had paid. The percentage of profit earned by Krishnan on the original price was :
#44. A sum of money becomes $ \frac76 $ of itself in 3 years at a certain rate of simple interest. The rate per annum is :
#45. A sum of money at simple interest triples itself in 15 years. It will become 5 times of itself in :
#46. How many numbers between 400 and 800 are divisible by 4, 5 and 6?
#47. If the cost price of 10 articles equals selling price of 9 articles, the gain or loss percent will be :
#48. The Government reduced the price of sugar by 10 per cent. By this a consumer can buy 6.2 kg more sugar for Rs 837. The reduced price per kg of sugar is :
#49. Alcohol and water in two vessels A and B are in the ratio 5 : 3 and 5 : 4 respectively. In what ratio, the liquids in both the vessels be mixed to obtain a new mixture in vessel C in the ratio 7 : 5 ?
#50. A person who pays income tax at the rate of 4 paise per rupee, find that a fall of interest rate from 4% to 3.75% diminishes his net yearly income by Rs 48. What is his capital?
