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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New Practice of 50 Questions in every attempt
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#1. In a test a student got 30% marks and failed by 25 marks. In the same test another student got 40% marks and secured 25 marks more than the essential minimum pass marks. The maximum marks for the test were
#2. The average of 20 numbers is calculated as 35. It is discovered later, that while calculating the average, one number, namely 85, was read as 45. The correct average is :
#3. The sum of the squares of three consecutive natural numbers is 2030. Then, what is the middle number?
#4. At what percent above the cost price, must a shopkeeper mark his goods so that he gains 20% even after giving a discount of 10% on the marked price?
#5. A cricketer had a certain average of runs for his 64 innings. In his 65th innings, he is bowled out for no score on his part. This brings down his average by 2 runs. His new average of runs is :
#6. In a school, the ratio of boys to girls is 4 : 3 and the ratio of girls to teachers is 8 : 1. The ratio of students to teachers is :
#7. 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 :
#8. The present worth of a bill due 7 months hence is Rs 1200 and if the bill were due at the end of $ 2\frac12 $ years its present worth would be Rs 1016. The rate percent is :
#9. The average of all the odd integers between 2 and 22 is :
#10. Which term of the series 72, 63, 54 … is zero?
#11. The value of $ 3\div[\left(8-5)\div{\{(4-2)+(2+\frac{8}{13})}\}\right] $is
#12. By selling an article for Rs 102, there is a loss of 15%, when the article is sold for Rs 134.40. The net result in the transaction is
#13. 8 workers can build a wall 18 m long, 2 m broad and 12 m high in 10 days, working 9 hours a day. Find how many workers will be able to build a wall 32 m long, 3 m broad and 9 m high in 8 days working 6 hours a day ?
#14. If 90% of A = 30% of B and B = 2x% of A, then the value of x is
#15. The total discount on Rs 1860 due after a certain time at 5% is Rs 60. Find the time after which it is due :
#16. If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to :
#17. 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?
#18. The ratio of the fifth and sixth terms of the sequence 1, 3, 6, 10, … is
#19. A student multiplied a number by $ \frac35 $ instead of $ \frac53 $ . What is the percentage error in the calculation?
#20. 553 + 173 – 723 + 201960 is equal to
#21. The least number which when divided by 4, 6, 8, 12 and 16 leaves a remainder of 2 in each case is :
L.C.M. of 4, 6, 8, 12 and 16 = 48
Required number = 48 2 = 50
#22. A supply of juice lasts for 35 days. If its use is increased by 40%, then the number of days would the same amount of juice lasts is :
#23. Find the selling price of an article if a shopkeeper allows two successive discounts of 5% each on the marked price of Rs 80
#24. $ \frac{3\sqrt{2}+2\sqrt{3}}{3\sqrt{2}-2\sqrt{3}} $ is equal to
#25. Two numbers are in ratio 5 : 8. If their difference is 48, then the smaller number is :
#26. If x is less than y by 25% then y exceeds x by
#27. A man rows down a river 15 km in 3 hours with the stream and returns in $ 7\frac1 2 $ hours. The rate at which he swims 26 km downstream is :
#28. Mohan lends Rs 500 to John and a certain sum to Tom at the same time at a simple interest of 8% per annum. If in 4 years, he altogether receives Rs 210 as interest from the two, then the sum of money he lent to Tom was
#29. Two trains X and Y start from Jodhpur to Jaipur and from Jaipur to Jodhpur respectively. After passing each other they take 4 hours 48 minutes and 3 hours 20 minutes to reach Jaipur and Jodhpur respectively. If X is moving at 45 km/hr, then the speed of Y is :
#30. The number, whose square is equal to the difference between the squares of 975 and 585 is :
#31. The ratio of the length of a school ground to its width is 5 : 2. If the width is 40 m, then the length is :
#32. Find the unit digit in the product
(4387)245 × (621)72
#33. If a person marks a product 25% above the cost price but allows 10% discount, then the percentage of profit is :
#34. Pick the odd one out from the sequence of numbers. 19, 23, 29, 37, 43, 46, 47 is
#35. If 20 women can lay a road of length 100 m 10 days. Then 10 women can lay the same road of length 50 m in :
#36. $ \sqrt{\frac{0.49}{0.25}} $ +$ \sqrt{\frac{0.81}{0.36}} $ is equal to
#37. Given A is 50% larger than C and B is 25% larger than C, then A is what per cent larger than B?
#38. 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 :
#39. If $ \sqrt7 = 2.646 $, then the value of $ \frac{1}{\sqrt{28}} $up to three places of decimals is :
#40. How many numbers between 400 and 800 are divisible by 4, 5 and 6?
#41. 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 :
#42. 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 :
#43. The salary of a person is increased by 20%, then it is decreased by 20%. The change in his salary is :
#44. The time in which Rs 80000 amounts to Rs 92610 at 10% p.a. compound interest, interest being compounded semi-annually is :
#45. A water tank can be filled by a tap in 30 minutes and another tap can fill it in 60 minutes. If both the taps are kept open for 5 minutes and then the first tap is closed, how long will it take for the tank to be full?
#46. A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
#47. Arrange $ \frac45,\frac78,\frac67,\frac56 $ in the ascending order.
#48. 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 :
#49. The HCF and LCM of two numbers are 21 and 84 respectively. If the ratio the two numbers is 1 : 4, then the larger of the two numbers is
HCF of numbers = 21
Numbers = 21x and 21y
Where x and y are prime to each other.
Ratio of numbers = 1 : 4
Larger number = 21 × 4 = 84
#50. A train of length 120 m long, takes 6 seconds to pass a telegraph post, the speed of train is :
