Mathematics Questions for CDS & AFCAT: 12th 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.

Q1. The cross section of a canal is in the shape of an isosceles trapezium which is 4 m wide at the bottom and 5 m wide at the top. If the depth of the canal is 2 m and it is 120 m long, what is the maximum capacity of this canal?
(a) 2160 cubic mts (b) 3240 cubic mts
(c) 4320 cubic mts (d) 1080 cubic mts

Q2.  If the radius of a circle is increased by 12% then its area increases by
(a) 24 percent
(b) 25.44 percent
(c) 12 percent
(d) 12.72 percent