# Mathematics Quiz for CDS: 27 Dec 2019

## Mathematics Quiz for CDS: 27rd Dec 2019

Jai Hind Aspirants, 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 9th and 10th. 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. If 6A = 4B = 9C; find A : B : C

Q1. If 6A = 4B = 9C; find A : B : C

(a) 6:4:9

(b) 6:9:4

(c) 4:9:6

(d) 9:6:4

**Q2. Find the third proportional to 10 and 25.**

(a) 2.5

(b) 62.5

(c) 40

(d) 100

**Q3. What number should be added to each of the numbers 103, 135, 110 and 144 so that the resulting numbers are in proportion?**

(a) 12

(b) 15

(c) 9

(d) 6

**Q4. When ticket prices to a water park are increased in the ratio 11:12 then the number of daily visitors to the park fall in the ratio 8:7. If the daily revenues before the increase in ticket price was Rs 176,000, then find the daily revenues after the increase in ticket price.**

(a) 264000

(b) 112000

(c) 192000

(d) 168000

**Q5. A started a trading ﬁrm by investing Rs 10 lakhs. After 4 months, B joined the business by investing Rs 15 lakhs then 2 months after B joined C too joined them by investing Rs 20 lakhs. 1 year after A started the business they made Rs 6,00,000 in proﬁt. What is C's share of the proﬁt (in Rs)?**

(a) 2,00,000

(b) 1,00,000

(c) 1,50,000

(d) 3,00,000

**Q6. A and B started a partnership business investing in the ratio of 2 : 5. C joined them after 3 months with an amount equal to 4/5th of B. What was their proﬁt (in Rs) at the end of the year if A got Rs 16,800 as his share?**

(a) 56000

(b) 100800

(c) 84000

(d) 117600

**Q7. The wages of three labourers A, B and C are in the ratio 10:12:15. A's wage is increased in the ratio 5:6, B's wage is increased in the ratio 3:4 and C's wage is increased in the ratio 3:5. The new ratio of the wages of A:B:C is _____________.**

(a) 15:18:20

(b) 12:16:25

(c) 6:7:9

(d) 8:6:5

**Q8. The ratio of present ages of Ajay and Vijay is 2:3. 4 years ago the ratio of their ages was 3:5. What is Vijay's present age (in years)?**

(a) 16

(b) 8

(c) 32

(d) 24

**Q9. If 12A = 16B = 15C; ﬁnd A:B:C.**

(a) 12:16:15

(b) 15:16:12

(c) 20:15:16

(d) 16:15:20

**Q10. Find the third proportional to 16 and 20.**

(a) 24

(b) 25

(c) 32

(d) 40

**Solution:**

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