Mathematics Questions for CDS & CAPF: 19th November

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 highest score of a batsman in an innings was 2/9 of the total score and the next highest score of another batsman was 2/9 of the remaining total score. These scores differ by 8 runs. What was the total score in the innings?
(a) 152
(b) 162
(c) 142
(d) 132

Q2. In an examination, 40% marks are required to pass. A obtains 10% less than the number of marks required to pass. B obtains 11 1/9% less than A. While C obtained 41 3/17% less than the number of marks obtained by A and B together. What percentage of marks did C get?
(a) 50
(b) 40
(c) 35
(d) 45

Q3. Mohan spends 40% of his salary on food items, 50% of the remaining on transport, 30% of the remaining, after spending on food and transport, he spends on clothes and saves the balance. If he saves Rs 630 every month, what is his monthly salary?
(a) Rs 1500
(b) Rs 3000
(c) Rs 5000
(d) Rs 6500

Q4. One year ago, the ratio between Mahesh’s and Suresh’s salaries was 3 : 5. The ratio of their individual salaries of last year and present year are 2 : 3 and 4 : 5 respectively. If their total salary for the present year is Rs 43000, what is the present salary of Mahesh?
(a) Rs 19000
(b) Rs 18000
(c) Rs 16000
(d) Rs 15500

Q5. Rohit took of Rs 20000 to purchase one LCD set from a finance company. He promised to make the payment after three years. The company charges compound interest at the rate of 10% per annum for the same. But, suddenly the company announces the rate of interest as 15% per annum for the last one year of the loan period. What extra amount does Rohit have to pay due to this announcement of the new rate of interest?
(a) Rs 7830
(b) Rs 4410
(c) Rs 6620
(d) None of these

Q9. A kite is flying at a height of 45 m from the ground is attached to a string inclined at 60° to horizontal. The length of the string is
(a) 30√5 m
(b) 30√3m
(c) 30√2 m
(d) 30/√2 m

Q10. Three circles of radius 10 cm are bound with the rubber band, the length of rubber band if it is stretched is
(a) 820/7
(b) 840/7
(c) 1000/7
(d) 860/7

SOLUTIONS