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 product of the LCM and the HCF of two numbers is 24. If the difference of the numbers is 2, then the greater of the number is
#2. In a class there are 30 boys and their average age is 17 years. When on one boy aged 18 years leaving the class and another joining, the average age becomes 16.9 years. The age of new boy is :
#3. What per cent decrease in salaries would exactly cancel out the 20 per cent increase?
#4. In what time will Rs 10000 amount to Rs 13310 at 20% per annum if compounded half yearly?
#5. 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?
#6. if$ \frac{1120}{\sqrt P} $ =80, then P is equal to
#7. If the discount is equal to one fifth of the marked price and the loss is half the discount, then the percentage of loss is :
#8. A sum of money is paid back in two annual instalments of Rs 17640 each, allowing 5% compound interest compounded annually. The sum borrowed was :
#9. By selling an article for Rs 69, there is a loss of 8%, when the article is sold for Rs 78, the gain or loss per cent is :
#10. A train passes a platform 90 metre long in 30 seconds and a man standing on the platform in 15 seconds. The speed of the train is :
#11. Given A is 50% larger than C and B is 25% larger than C, then A is what per cent larger than B?
#12. A boat goes 12 km downstream and comes back to the starting point in 3 hours. If the speed of the current is 3 km/hr, then the speed (in km/hr) of the boat in still water is :
#13. The average weight of the first 11 persons among 12 persons is 95 kg. The weight of 12th person is 33 kg more than the average weight of all the 12 persons. The weight of the 12th person is :
#14. The average of 15 numbers is 7. If the average of the first 8 numbers be 6.5 and the average of last 8 numbers be 9.5, then the middle number is :
#15. The LCM of two numbers is 1920 and their HCF is 16. If one of the number is 128, find the other number.
#16. Find the unit digit in the product
(4387)245 × (621)72
#17. Out of 4 numbers, whose average is 60, the first one is one-fourth of the sum of the last three. The first number is :
#18. Two types of tea costing Rs 180 per kg and Rs 280 per kg should be mixed in the ratio so that the mixture obtained was sold at Rs 320 per kg to earn a profit of 20% is
#19. A shopkeeper sells an article at 15% gain. Had he sold it for Rs 18 more, he would have gained 18%. The cost price (in Rs) of the article is
#20. 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 :
#21. A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price and the printed price of the book is :
#22. A milkman makes 20% profit by selling milk mixed with water at Rs 9 per litre. If the cost price of 1 litre pure milk is Rs 10, then the ratio of milk and water in the said mixture is :
#23. If the ratio of cost price to selling price is 10: 11, then the rate of percent of profit is
#24. The cost price of 100 books is equal to the selling price of 60 books. The gain percentage/loss percentage is :
#25. 461+ 462 + 463 + 464 is divisible by
#26. 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.
#27. If the square of the sum of two numbers is equal to 4 times of their product, then the ratio of these numbers is :
#28. The ratio of two numbers is 3 : 4 and their LCM is 48. The sum of the two numbers is :
#29. Given that 12 + 22 + 32 + … + 202 = 2870. Then the value of (22 + 42 + 62 + … + 402 ) is :
#30. The product of two 2–digit numbers is 2160 and their HCF is 12. The numbers are
#31. There is a ratio of 5 : 4 between two numbers. If 40 per cent of the first is 12, then 50% of the second number is :
#32. A train travels 500 m in first minute. In the next 4 minutes, in each minute it travels 125 m more than that in the previous minute. The average speed per hour of the train during those 5 minutes will be :
#33. If A’s income is 50% less than that of B’s, then B’s income is what per cent more than that of A?
#34. The wrong number of the sequence 4, 9, 19, 39, 79, 169, 319 is :
#35. 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 :
#36. The sum of the squares of three consecutive natural numbers is 2030. Then, what is the middle number?
#37. A takes three times as long as B and C together to do a job. B takes four times as long as A and C together to do the work. If all the three, working together can complete the job in 24 days, then the number of days, A alone will take to finish the job is
#38. If a man walks 20 km at 5 km/hr, he will be late by 40 minutes. If he walks at 8 km/hr, how early from the fixed time will he reach?
#39. The least number that should be added to 2055, so that the sum is exactly divisible by 27 is :
#40. If $ \sqrt7 = 2.646 $, then the value of $ \frac{1}{\sqrt{28}} $up to three places of decimals is :
#41. Divide 50 into two parts so that the sum of their reciprocals is $ \frac{1}{12} $
#42. If the average weight of 6 students is 50 kg; that of 2 students is 51 kg and that of 2 other students is 55 kg; then the average weight of all the students is :
#43. Suppose that ‘x’ number of men can finish a piece of work in 30 days. If there were 6 men more, the work could be finished in 10 days less. The original number of men is :
#44. A man bought a watch for 10% discount. If had bought for 20% discount he would have got the watch for Rs 125 less. The marked price of the watch is :
#45. A shopkeeper allows a discount of 10% on the marked price of a camera. Marked price of the camera, which costs him Rs 600, to make a profit of 20% should be :
#46. Of the three numbers whose average is 60, the first is one fourth of the sum of the others. The first number is :
#47. Nita blends two varieties of tea one costing Rs 180 per kg and another costing Rs 200 per kg in the ratio 5 : 3. If she sells the blended variety at Rs 210 per kg, then her gain percent is :
#48. In a group of students, 70% can speak English and 65% can speak Hindi. If 27% of the students can speak none of the two languages, then what per cent of the group can speak both the languages?
#49. The total number of prime factors in $ 4^{10}\times{7}^3\times{16}^2\times11\times{10}^2 $ is
#50. The middle term(s) of the following series 2 + 4 + 6 + … + 198 is
