RRB Group D - Mathematics PYQ Quiz 199
10 PYQ questions from RRB Group D - Mathematics
About This Quiz
This is one set from a larger bank. See all RRB Group D Mathematics previous year questions.
RRB Group D - Mathematics PYQ Quiz 199 — Questions with Solutions
All 10 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.sec θ + tan θ = p, then find 4sec θ.
- A.2(1−p²)/p
- B.2(1+p²)/p
- C.(1+p²)/2p
- D.(1+p²)/p
Show answer
Answer: B. 2(1+p²)/p
Q2.Factorise: y³ − xy² − x²y + x³
- A.(y − x)²(y + x)
- B.(y − x)²(y × x)
- C.(y − x)(y² + x²)
- D.(y + x)²(y − x)
Show answer
Answer: A. (y − x)²(y + x)
Q3.(x + 2y − 3z)² is equal to:
- A.x² + 4y² + 9z² + 4xy − 12yz − 6xz
- B.x² + 4y² − 9z² + 4xy − 12yz − 6xz
- C.x² + 4y² + 9z² + 4xy + 12yz − 6xz
- D.x² + 4y² + 9z² + 4xy − 12yz + 6yz
Show answer
Answer: A. x² + 4y² + 9z² + 4xy − 12yz − 6xz
Q4.The age of Raghu 8 years ago was thrice the then age of Mohan. Eight years hence, Raghu's age will be twice of Mohan's age. Find the ratio of the present ages of Mohan and Raghu, respectively.
- A.3 : 7
- B.3 : 5
- C.6 : 7
- D.4 : 5
Show answer
Answer: A. 3 : 7
Q5.Which of the options below represents a Pythagorean triplet?
- A.10, 99, 111
- B.12, 143, 150
- C.20, 99, 101
- D.15, 224, 223
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Answer: C. 20, 99, 101
Q6.If ax² − 8x − 8 is divided by (x + 2), then the remainder is 24. Find the value of a.
- A.1
- B.2
- C.4
- D.3
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Answer: C. 4
Q7.There are three pipes A, B and C in a tank. The first pipe A can fill the empty tank in 8 hours, the second pipe B can fill the tank in 10 hours, and the third pipe C can empty the completely filled tank in 20 hours. If the three pipes are opened together when the tank is completely empty, then in how many hours will the tank be completely filled?
- A.25/11 hours
- B.40/7 hours
- C.20/11 hours
- D.30/7 hours
Show answer
Answer: B. 40/7 hours
Q8.If the mean and the mode of x data set are 5 and 8, respectively, then, using the relevant empirical relation, find the median of the same data set.
- A.6
- B.7
- C.14
- D.3.5
Show answer
Answer: A. 6
Q9.The LCM of two numbers is 88 times their HCF and the sum of the LCM and the HCF is 451. If the sum of the numbers is 253, then one of the two numbers is:
- A.82
- B.41
- C.123
- D.164
Show answer
Answer: A. 82
Q10.Which two numbers from amongst the given options should be interchanged to make the given equation correct? 382 ÷ 9 + 4 − 39 = 172 × 74
- A.9 and 4
- B.4 and 172
- C.382 and 39
- D.9 and 172
Show answer
Answer: D. 9 and 172
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Which government exams does this quiz prepare me for?
Mathematics questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.