Mathematics Questions for CDS & CAPF: 8th 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. 74% of the students of a certain class took Biology and 54% took Mathematics. If each student took at least one subject from Biology or Mathematics and 70 took both then the total number of students in the class is-
(a) 200
(b) 240
(c) 250
(d) 320

Q2. Arunoday and Lalit run a long distance race. Arunoday and Lalit runs at 6 km/hr and 5 km/hr respectively. When Lalit reaches the 25 km mark, Arunoday is exactly 40 minutes away from finishing point. Find the race’s distance (in kms)?
(a) 56
(b) 36
(c) 34
(d) 48

Q3. A man is twice as fast as a woman and a woman is twice as fast as a boy in doing a work. If all of them, a man, a woman and a boy can finish the work in 7 days, in how many days a boy will do it alone?
(a) 49
(b) 7
(c) 6
(d) 42

Q9. If Î³ & Î´ are the roots of the eqn. x² + Î³ x + Î´ = 0, then Î³ + Î´ = ?
(a) 2
(b) –2
(c) –1
(d) 1

SOLUTIONS