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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Results
#1. If a = 4011 and b = 3989, then the value of ab = ?
#2. The value of 
is
#3. A builder borrows Rs 2550 which is to be paid back with compound interest at the rate of 4% per annum by the end of 2 years in two equal yearly instalments. How much will each instalment be?
#4. Two numbers are in the ratio 1 : 3 If their sum is 240, then their difference is :
#5. The least number to be subtracted from 36798 to get a number which is exactly divisible by 78 is
When 36798 is divided by 78, remainder = 60
The least number to be subtracted = 60
#6. Ramesh deposited Rs 15600 in a fixed deposit at the rate of 10% per annum simple interest. After every second year, he adds his interest earnings to the principal. The interest at the end of fourth year is :
#7. Ramesh bought 10 cycles for Rs 500 each. He spent Rs 2000 on the repair of all cycles. He sold five of them for Rs 750 each and the remaining for Rs 550 each. Then the total gain or loss % is :
#8. 31% of employees pay tax in the year 2008. The number of non-tax paying employees are 20,700. The total number of employees is :
#9. A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the current is :
#10. The sum of a pair of positive integer is 336 and their HCF is 21.The number of such possible pairs is
#11. 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 :
#12. At what per cent per annum will Rs 3000 amounts to Rs 3993 in 3 years if the interest is compounded annually?
#13. 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 ?
#14. The total number of prime factors in 
is
#15. The compound interest on a certain sum of money at a certain rate for 2 years is Rs 40.80 and the simple interest on the same sum is Rs 40 at the same rate and for the same time. The rate of interest is :
#16. 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 :
#17. The HCF (GCD) of a, b is 12, a, b are positive integers and a > b > 12. The smallest values of (a, b) are respectively
HCF of a and b = 12
Numbers = 12x and 12y where x and y are prime to each other.
a > b > 12
a = 36; b = 24
#18. The LCM of two multiples of 12 is 1056. If one of the number is 132, the other number is
#19. Three numbers are in the ratio 2 : 3 : 4. If the sum of their squares is 1856, then the numbers are
#20. The HCF of two numbers is 96 and their LCM. is 1296. If one of the number is 864, the other is
#21. At what rate percent per annum will the simple interest on a sum of money be 
of the amount in 10 years ?
#22. The sum of four consecutive even numbers is 748. The smallest among them is
#23. If 
, then the value of x is
#24. A vessel contains 20 litres of acid. 4 litres of acid is taken out of the vessel and replaced by the same quantity of water. The next 4 litres of the mixture are withdrawn and again the vessel is filled with the same quantity of acid left in the vessel with the quantity of acid initially in the vessel is :
#25. Two successive discounts of 10% and 5% is given on a bill of Rs 110. Find the net amount of money payable to clear the bill. (Answer to the nearest rupee)
#26. A student multiplied a number by 
instead of 
. What is the percentage error in the calculation?
#27. Find the value of 
#28. If X = 
, Y = 
, Z =
, then
#29. What will come in place of the question mark (?) in the series? 3, 8, 27, 112, (?), 3396
#30. 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 :
#31. The value of (
is
#32. The least number, which is to be added to the greatest number of 4 digits so that the sum may be divisible by 345 is :
#33. 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
#34. Three numbers are in the ratio 1 : 2 : 3. By adding 5 to each of them, the new numbers are in the ratio 2 : 3 : 4. The numbers are:
#35. The next number of the sequence 51, 52, 56, 65 is
#36. The number 96 – 11 when divided by 8 would leave a remainder of
#37. A and B can together finish a work in 30 days. They worked at it for 20 days and then B left. The remaining work was done by A alone in 20 more days A alone can finish the work in :
#38. What per cent decrease in salaries would exactly cancel out the 20 per cent increase?
#39. Two pipes A and B can separately fill a cistern in 60 minutes and 75 minutes respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is filled in 50 minutes. In how much time the third pipe alone can empty the cistern?
#40. How many numbers between 400 and 800 are divisible by 4, 5 and 6?
#41. 
is equal to
#42. If the selling price of 4 articles is equal to the cost price of 5 articles, the profit per cent is :
#43. The printed price of an article is Rs 900 but the retailer gets a discount of 40%. He sells the article for Rs 900. The retailer’s gain percent is :
#44. A thief steals a car at 1.30 p.m. and drives it off at 40 km/hr. The theft is discovered at 2 p.m. and the owner sets off in another car at 50 km/hr. He will overtake the thief at :
#45. What sum of money must be given as simple interest for six months at 4% per annum in order to earn Rs 150 interest?
#46. 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 :
#47. The average age of 30 students is 9 years. If the age of their teacher is included, the average age becomes 10 years. The age of the teacher (in years) is:
#48. 
is equal to
#49. 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?
#50. The fourth proportional to 0.12, 0.21, 8 is :
