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 sum of Rs 1550 was lent partly at 5% and partly at 8% simple interest. The total interest received after 3 years is Rs 300. The ratio of money lent at 5% to that at 8% is :
#2. $ (\frac12)^{-\frac12} $ is equal to
#3. An item when sold for Rs 1690 earned 30% profit on the cost price. Then the cost price is :
#4. The odd term in the sequence 0, 7, 26, 63, 124, 217 is
#5. When 335 is added to 5A7, the result is 8B2. 8B2 is divisible by 3. What is the largest possible value of A?
#6. A worker suffers a 20% cut in his wages. He may regain his original wages by obtaining a rise of
#7. 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 :
#8. The wrong number of the sequence 4, 9, 19, 39, 79, 169, 319 is :
#9. A store has an offer ‘Buy 4 Get 1 Free’. What is the net percentage of discount?
#10. The next number of the sequence 2, 5, 10, 14, 18, 23, 26, 32 … is
#11. 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 :
#12. The difference between the simple and compound interest on a certain sum of money at 5% rate of interest per annum for 2 years is Rs 15. Then the sum is :
#13. . Four years ago, the ratio of A’s age to B’s age was 11 : 14 and four years later their age will be in the ratio 13 : 16. The present age of A is :
#14. 553 + 173 – 723 + 201960 is equal to
#15. A can do a piece of work in 6 days. B is 25% more efficient than A. How long would B alone take to finish this work?
#16. Two trains start at the same time from Aligarh and Delhi and proceed towards each other at the rate of 14 km and 21 km per hour respectively. When they meet, it is found that one train has travelled 70 km more than the other. The distance between the two stations is :
#17. If one-ninth of a certain number exceeds its one-tenth by 4, the number is :
#18. If the price of a commodity is increased by 50%, by what fraction must its consumption be reduced so as to keep the same expenditure on its consumption?
#19. A double bed is marked at Rs 7500. The shopkeeper allows successive discounts of 8%, 5% and 2% on it. What is the net selling price?
#20. A certain number of men can do a work in 40 days. If there were 8 men more, it could be finished in 10 days less. How many men were there initially?
#21. If out of 10 selected students for an examination, 3 were of 20 years age, 4 of 21 and 3 of 22 years, the average age of the group is :
#22. 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 :
#23. 15 litres of a mixture contains alcohol and water in the ratio 1 : 4. If 3 litres of water is mixed in it, the percentage of alcohol in the new mixture will be
#24. When 75% of a number is added to 75, the result is the same number. Find the number.
#25. Three glasses are filled with a mixture of acid and water in equal volume. The ratios of acid and water are 2 : 3, 3 : 4 and 4 : 5 respectively. The contents of these glasses are poured in a large vessel. The ratio of acid and water in the large vessel is :
#26. A man borrowed some money from a private organization at 5% simple interest per annum. He lends 50% of this money to another person at 10% compound interest per annum and thereby the man made a profit of Rs 3205 in 4 years. How much did the man borrow?
#27. The salary of a person is increased by 20%, then it is decreased by 20%. The change in his salary is :
#28. Of the three numbers, the first number is twice the second and the second is thrice the third number. If the average of these 3 numbers is 20, then the sum of the largest and the smallest numbers is :
#29. 1 + 2 + 3 + … + 49 + 50 + 49 + 48 + … + 3 + 2 + 1 is equal to
#30. The greatest among the following numbers $ (3)^\frac13, (2)^\frac12,1, (6)^\frac16 $ is
#31. Two places P and Q are 162 km apart. A train leaves P for Q and simultaneously another train leaves Q for P. They meet at the end of 6 hours. If the former train travels 8 km/hour faster than the other, then speed of train from Q is :
#32. The sum of two numbers is 37 and the difference of their squares is 185, then the difference between the two numbers is :
#33. A man travels for 5 hours 15 minutes. If he covers the first half of the journey at 60 km/h and rest at 45 km/h. Find the total distance travelled by him.
#34. In what time will Rs 10000 amount to Rs 13310 at 20% per annum if compounded half yearly?
#35. If 120 is 20% of a number, then 120% of that number will be :
#36. If 2 + x$ \sqrt3 $ =$ \frac{1}{2+\sqrt3} $ then the simplest value of x is :
#37. If a person marks a product 25% above the cost price but allows 10% discount, then the percentage of profit is :
#38. 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
#39. Which of the following number is the greatest of all? $ 0.9,0.{\overline9},0.0{\overline9},0.\overline{09} $
#40. A sum of money at simple interest triples itself in 15 years. It will become 5 times of itself in :
#41. To gain 8% after allowing a discount of 10%, by what percent cost price should be hiked in the list price?
#42. A policeman goes after a thief who has 100 metres start if the policeman runs a kilometre in 8 minute and the thief a km in 10 minute, then the distance covered by the thief before he is over-powered is :
#43. If a boy walks from his house to school at the rate of 4 km per hour, he reaches the school 10 minutes earlier than the scheduled time. However, if he walks at the rate of 3 km per hour, then he reaches 10 minutes late. Find the distance of his school from his house :
#44. 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 :
#45. if$ \frac{1120}{\sqrt P} $ =80, then P is equal to
#46. Out of seven given numbers, the average of the first four numbers is 4 and that of the last four numbers is also 4. If the average of all the seven numbers is 3, then the fourth number is :
#47. The quotient when $ 10^{100} $ is divided by $ 5^{75} $ is
#48. If a = 4011 and b = 3989, then the value of ab = ?
#49. A man purchased an article and sold it to B at a profit of 25% and B sold it to C at a loss of 10% and C paid Rs 675 for it. For how much did A purchase it (in Rs)?
#50. The sum of a natural number and its square equals the product of the first three prime numbers. The number is
