Mathematics Questions for CDS & CAPF: 16th October


Dear Students, Defence Adda is providing you all with this quiz on Mathematics questions for CDS, AFCAT, CAPF and other Defence Examinations. The questions asked in Mathematics Section of most of the defence examinations are based on the topics from Mathematics of Class 11th and 12th. The questions asked in this section are complex and comparatively difficult but once attempted with high accuracy, can fetch you full marks in this section. Also, practice on a daily basis helps one dive into the core concepts of a subject and thus, help her perform to the best of her ability in the real examinations. So, attempt the daily quizzes being provided by Defence Adda and score to the maximum in the Mathematics Section of all sorts of defence examinations.

Q1. A person usually spent Rs. 48 to buy groundnuts. On one occasion he could buy 1.5 kg of groundnuts less for Rs. 48 as the prices had gone up by 25%. Then what was the earlier price of groundnut per kg . 
(a) Rs. 8
(b) Rs. 6.40
(c) Rs. 7.20
(d) None of these

Q2. Compound interest on Rs. 40,000 for 4 years at 10% per annum will be
(a) 18000
(b) 17564
(c) 18564
(d) 16000

Q6. The length of the sides of a ∆ are x, 16 & 31, where x is the shortest side. If the ∆ is not isosceles, what is the minimum possible value of x?
(a) 15.5
(b) 16.2
(c) 14.8
(d) 13.9


Q7.There are three containers of equal capacity. The ratio of milk to water in the first containers is 3 : 1 that in the second container is 5 : 3 and in third container it is 7 : 5. If all the liquids are mixed together, then the ratio of milk and water in the mixture will be. 
(a) 61 : 29 
(b) 47 : 25  
(c) 57 : 27  
(d) 40 : 31 

Q8.A shopkeeper allows 15% discount on market price of a Table and thus suffered a loss of 10% on it. If he gives 10% discount and wants to make a profit of 40%, then what would be the ratio of his cost price and new market price? 
(a) 14:9
(b) 9:14
(c) 17:35
(d) 11:14

Q9. Volume of a sphere, a cube, a tetrahedron and an octahedron is same. Find for which of the following structures, it will have the minimum surface area 
(a) Tetrahedron 
(b) Cube 
(c) Octahedron 
(d) Sphere 


SOLUTIONS











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