12 Things You Must Know About the Rashtriya Rifles (RR)
1. The Rashtriya Rifles (RR) is a specialized counter-insurgency force of the Indian Army. 2. It was established in 1990 to combat insurgency and terrorism
APTITUDE QUESTIONS FOR NDA
Q1. For instance, if 20 workers are working on 8 hours to finish a particular work process in 21 days, then how many hours are going to take for 48 workers to finish the same task in 7 days?
A.12
B. 20
C. 10
D. 15
Answer: 10
Q2. If a wholesaler is earning a profit amount of 12% in selling books with 10% of discount to the printed price. What would be the ratio of cost price which is printed in the book?
A. 45:56
B. 50: 61
C. 99:125
D. None of these
Answers: 45:56
Q3. Let’s say it takes 8 hours to finish 600 kilometres of the trip. Say we will complete 120 kilometres by train and remaining journey by car. However, it will take an extra 20 minutes its done train and remaining by car. What would be the ratio of the speed of the train to that of the car?
A. 3:5
B. 3:4
C. 4:3
D. 4:5
Answer: B
Q4. What is the value of m3+n3 + 3mn if m+n is equal to 1?
A. 0
B. 1
C. 2
D. 3
Answer: 1
Q5. Let’s assume subject 1 and subject 2 can work on a project for 12 consecutive days. However, subject 1 can complete the work in 30 days and how long it will take for a subject B to finish the project?
A: 18 days
B: 20 days
C: 15 days
D: 22 days
Answer: 20 Days
Q6. What is known as a point equidistant which is vertices of a triangle?
A. Incentre
B. Circumcentre
C. Orthocentre
D. Centroid
Answer: Circumcentre
Q7. What is the sum of the factors of 4b2c2 – (b2 + c2 – a2) 2?
A. a+b+c
B. 2 (a+b+c)
C. 0
D. 1
Answer: 2(a+b+c)
Q8: What is the role of boys in the school if 60% of the students in a particular school are boys and 812 girls?
A. 1128
B. 1218
C. 1821
D. 1281
Answer: 1218
Q9. Suppose cos4θ – sin4θ = 1/3, then what is the value of tan2θ?
A. 1/2
B. 1/3
C. 1/4
D. 1/5
Answer: 1/2
Q10: What could be the value of tan80° tan10° + sin270° + sin20° is tan80° tan10° + sin270° + sin20°?
A. 0
B. 1
C. 2
D. √3/2
Answer: 2
1. The Rashtriya Rifles (RR) is a specialized counter-insurgency force of the Indian Army. 2. It was established in 1990 to combat insurgency and terrorism
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