 Mathematics Questions for CDS & CAPF: 7th November

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. The speeds of three students are in the ratio 2 : 3 : 4. The ratio of the time taken by these students to travel the same distance is
(a) 2 : 3 : 4
(b) 4 : 3 : 2
(c) 4 : 3 : 6
(d) 6 : 4 : 3

Q2. Pipe A can fill a tank in 4 hrs. and pipe B can fill it in 6 hrs. If they are opened on alternative hour, in how many hours the half tank will be filled?
(a) 4 hrs.
(b) 5 hrs.
(c) 4 2/3 hrs.
(d) None of these

Q3. The simple interest on an amount in 2 years at the rate of 7% per year is equal to the simple interest on Rs. 1750 in 4 years at the rate of 5% per year. Find the principal.
(a) Rs. 2500
(b) Rs. 2050
(c) Rs. 2550
(d) None of these

Q4. At simple interest Rs. 800 becomes Rs. 920 in 3 years. If rate of interest is increased numerically by 3% then the total amount will become–
(a) Rs. 972
(b) Rs. 982
(c) Rs. 992
(d) None of these  Q7. What is the distance of point of intersection of two straight lines 2x+3y=6 and y=x+7 from origin ?
(a) 7
(b) 3
(c) 4
(d) 5

Q8. In a temple a cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the piller at the rate of Rs. 10 per sq m.
(a) Rs. 50
(b) Rs. 68
(c) Rs. 98
(d) Rs. 55  SOLUTIONS          