Mathematics Questions for CDS & AFCAT: 2nd February

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. A water tank is 30 cm long, 20 cm wide and 12 m deep. It is made of iron sheet which is 3 m wide. The tank is open at the top. If the cost of iron sheet is Rs. 10 per  meter. Find total cost of iron required to build the tank ?
(a) Rs. 6000
(b) Rs. 5000
(c) Rs. 5500
(d) Rs. 5800

Q2. Price of sugar is increased by 26%.A man reduced his consumption by 1 kg . But the expenditure increased 20% . Then find the quantity of sugar bought after increment in price.
(a) 21 kg
(b) 20 kg
(c) 18.33 kg
(d) 19 kg

Q3. In an assembly election there were only two contestent, 6% of the voters did not vote and 2% of the voters pressed NOTA (none of the two) in EVM .If 160 votes were declared invalid and winning candidate got 48% of  total votes and won election by 480 votes .Find the number of valid votes .
(a)7200
(b) 7360
(c) 8000
(d) 7500

Q4. Suresh can finish a piece of work by himself in 42 days. Mahesh, who is 1/2 times more efficient as Suresh, requires X days to finish the work by working all by himself. Then what is the value of X?
(a) 25 days
(b) 30 days
(c) 35days
(d) 20 days

Q5. A plane left 30 min later than its scheduled time to reach its destination 1500 km away. In order to reach in time it increases its speed by 250 km/h. What is its original speed?
(a) 1000 km/h
(b) 750 km/h
(c) 600 km/h
(d) 800 km/h

Q8. P is a point outside the circle at distance of 6.5 cm from centre O of the circle. PR be a secant such that it intersects the circle at Q and R. If PQ = 4.5 cm and QR = 3.5 cm, then what is the radius (in cm) of the circle?
(a) 1.5
(b) 2
(c) 2.5
(d) 3
Q10. What is the reï¬‚ection of the point (-4, 3) in the line x = -2?
(a) (-4, -7)
(b) (4, 3)
(c) (0, 3)
(d) (-4, 7)

SOLUTIONS