Mathematics Questions for CDS & AFCAT: 16th January (SOLUTIONS)

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.

Q8. A bank offers 5% compound interest per half year. A customer deposits Rs. 9600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is :
(a) Rs. 2928
(b) Rs. 1464
(c) Rs. 732
(d) Rs. 366

Q9. By increasing the price of entry ticket to a fair in the ratio 3 : 5, the number of visitors to the  fair has decreased in the ratio 7 : 2. In what ratio has the total collection increased or decreased?
(a) increased in the ratio 10 : 21
(b) increased in the ratio  6 : 35
(c) decreased in the ratio 21 : 10
(d) decreased in the ratio 35 : 6

Q10. Madhur works 2 times faster than Sagar. If Sagar can complete a job alone in 18 days, then in how many days can they together finish the job?
(a) 5 days
(b) 2 days
(c) 6 days
(d) 4 days