Mathematics Questions for CDS & CAPF: 1st 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. Brothers A and B had some savings in the ratio 4 : 5. They decided to buy a gift for their sister, sharing the cost in the ratio 3 : 4. After they bought, A spent two-third of his amount while B is left with Rs. 145. Then, the value of the gift is
(a) Rs 70
(b) Rs 105
(c) Rs 140
(d) Rs 175

Q2. The average salary per head of all workers of an institution is Rs. 60. The average salary per head of 12 officers is Rs. 400. The average salary per head on the rest is Rs. 56. Then, the total number of workers in the institution is
(a) 1030
(b) 1032
(c) 1062
(d) 1060

Q3. A man spends an average of Rs 1694.70 per month for the first 7 months and Rs 1810.50 per month for the next 5 months. His monthly salary if he saves Rs 3084.60 during the whole year is
(a) Rs 2400
(b) Rs 3000
(c) Rs 1000
(d) Rs 2000

Q4. A shopkeeper sells a transistor at 15% above its cost price. If he had bought it for 5% more than what he paid for and sold it for Rs 6 more, he would have gained 10%. The cost price of the transistor is
(a) Rs 800
(b) Rs 1000
(c) Rs 1200
(d) Rs 1400

Q5. Of the adult population in a certain city, 45% of men and 25% of women are married. Assuming that no man marries more than one women and vice versa, the percentage of total population of adults who are married, is
(a) 33.33
(b) 32.14
(c) 31.1
(d) 30

Q7. A triangle with three equal sides has its area equal to 3√3 sq cm. Find its perimeter.

(a) 6√3 cm
(b) 2√3  cm
(c) 5√3 cm
(d) 7√3 cm

Q8. The volume of a cube is numerically equal to sum of the length of  its edges. What is the total surface area of cube in square units ?
(a) 12
(b) 36
(c) 72
(d) 144

SOLUTIONS