Mathematics Questions for CDS & AFCAT: 26th January

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.

Q6. The weights of Mr. Gupta and Mrs. Gupta are in the ratio 7 : 8 and their total weight, combined is 120 kg. After taking a dieting course Mr. Gupta reduces by 6 kg and the ratio between their weights changes to 5 : 6. So, Mrs. Gupta has reduced by
(a) 2 kg
(b) 4 kg
(c) 3 kg
(d) 5 kg

Q7. In a class, the number of girls is 20% more than that of the boys. The strength of the class is 66. If 4 more girls are admitted to the class, the ratio of the number of boys to that of the girls is. 
(a) 1 : 2
(b) 3 : 4
(c) 1 : 4
(d) 3 : 5

Q8. A car can cover a certain distance in 412h. If the speed is increased by 5 km/hr, it would take 12 h less to cover the same distance. Find the slower speed of the car. 
(a) 50 km/hr
(b) 40 km/hr
(c) 45 km/hr
(d) 60 km/hr

Q9. A does half as much work as B in one sixth of the time. If together they take 10 days to complete a work, how much time shall B alone take to do it ? 
(a) 70 days
(b) 30 days
(c) 40 days
(d) 50 days

Q10.  A and B undertook to do a piece of work for Rs. 4500. A alone could to it in 8 days and B alone in 12 days. With the assistance of C they finished the work in 4 days. Then C’s share of the money is 
(a) Rs. 2250 
(b) Rs. 1500 
(c) Rs. 750 
(d) Rs. 375


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