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. 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?
#2. The list price of a clock is Rs 160. A customer buys it for Rs 122.40 after two successive discounts. If first discount is 10%, the second is ?
#3. If A and B are in the ratio 4 : 5 and the difference of their squares is 81, what is the value of A?
#4. The present worth of a bill due 7 months hence is Rs 1200 and if the bill were due at the end of 
years its present worth would be Rs 1016. The rate percent is :
#5. In a school 
of the boys are same in number as 
of the girls and 
of the girls are same in number as of the boys. The ratio of the boys to girls in that school is :
#6. The simplified value of 
is
#7. If 28 men complete 
of a piece of work in a week, then the number of men, who must be engaged to get the remaining work completed in another week, is :
#8. The mean of 20 items is 55. If two items such as 45 and 30 are removed, the new mean of the remaining items is :
#9. 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 :
#10. A pipe can fill a tank in ‘x’ hours and another pipe can empty it in ‘y’ (y > x) hours. If both the pipes are open, in how many hours will the tank be filled?
#11. A number when divided by 221 leaves a remainder 64. What is the remainder if the same number is divided by 13?
#12. The average of six numbers is 32. If each of the first three numbers is increased by 2 and each of the remaining three numbers is decreased by 4, then the new average is :
#13. The next number of the sequence 51, 52, 56, 65 is
#14. 2 men and 1 woman together can complete a piece of work in 14 days, while 4 women and 2 men together can do it in 8 days. If a man gets Rs 600 per day, how much should a woman get per day?
#15. Find the value of 
#16. If the cost price of 10 articles equals selling price of 9 articles, the gain or loss percent will be :
#17. If the product of first 50 positive consecutive integers be divisible by 
, where n is an integer, then the largest possible value of n is :
#18. In what ratio must a mixture of 30% alcohol strength be mixed with that of 50% alcohol strength so as to get a mixture of 45% alcohol strength ?
#19. In an examination, 19% students fail in Mathematics and 10% students fail in English. If 7% of all students fail in both subjects, then the number of students passed in both subjects is :
#20. The smallest among![\sqrt[6]{12},\sqrt[3]4,\sqrt[4]5,\sqrt3](https://s0.wp.com/latex.php?latex=%5Csqrt%5B6%5D%7B12%7D%2C%5Csqrt%5B3%5D4%2C%5Csqrt%5B4%5D5%2C%5Csqrt3+&bg=ffffff&fg=000&s=0&c=20201002)
is
#21. If the price of petrol be raised by 20%, then the percentage by which a car owner must reduce his consumption so as not to increase his expenditure on petrol is :
#22. The rational number between 
and 
is
#23. 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.
#24. A certain distance is covered by a cyclist at a certain speed. If a jogger covers half the distance in double the time, then the ratio of the speed of the jogger to that of the cyclist is :
#25. The compound interest on Rs 30000 at 7% per annum for a certain time is Rs 4347. The time is :
#26. In an election there were only two candidates. One of the candidates secured 40% of votes and is defeated by the other candidate by 298 votes. The total number of votes polled is :
#27. The average of all the odd integers between 2 and 22 is :
#28. 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 :
#29. The marked price of a radio is Rs 4800. The shopkeeper allows a discount of 10% and gains 8%. If no discount is allowed, his gain per cent will be :
#30. The distance between two cities A and B is 330 km. A train starts from A at 8 a.m. and travels towards B at 60 km/hr. Another train, starts from B at 9 a.m. and travels towards A at 75 km/hr. At what time will they meet?
#31. The sum of the cubes of the numbers 22, -15 and -7 is equal to
#32. The simplification of 
up to three places of decimals yields
#33. the value of 25 – 5 [2 + 3 (2 – 2 (5 – 3) + 5) – 10] ÷ 4 is
#34. 2 men and 1 woman can complete a piece of work in 14 days while 4 women and 2 men can do the same work in 8 days. If a man gets Rs 180 per day, then what amount will a woman get per day?
#35. What is the average of the first six (positive) odd numbers each of which is divisible by 7?
#36. If X = 
, Y = 
, Z =
, then
#37. 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
#38. A man is walking at a speed of 10 kmph. After every km, he takes a rest for 5 minutes. How much time will he take to cover a distance of 5 km?
#39. The square root of 
#40. The ratio of monthly incomes of A and B is 6 : 5 and their monthly expenditures are in the ratio 4 : 3. If each of them saves Rs. 400 per month, then find the sum of their monthly incomes.
#41. If 20% of A = 50% of B, then what per cent of A is B?
#42. If 120 is 20% of a number, then 120% of that number will be :
#43. The value of 
is
#44. The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.2 year. The average age of the new students is :
#45. 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?
#46. If a, b, c are three numbers such that a : b = 3 : 4 and b : c = 8 : 9, then a : c is equal to
#47. The HCF and LCM of two numbers are 12 and 924 respectively. Then the number of such pairs is
Let the numbers be 12x and
12y where x and y are prime to
each other.
LCM = 12xy
12xy = 924
xy = 77
Possible pairs = (1,77) and (7,11)
#48. The ratio of cost price and selling price is 5 : 4, the loss percent is :
#49. The average of 5 consecutive natural numbers is m. If the next three natural numbers are also included, then how much more than m will the average of these 8 numbers be?
#50. The simple interest on a sum after 4 years is 
of the sum. The rate of interest per annum is :
