RRB Group D - Mathematics PYQ Quiz 194
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 194 — 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.If a = (0.29̄ ÷ 0.32̄) × (0.2̄ ÷ 0.15̄) + 0.3̄, then the value of a is:
- A.1 2/3
- B.2 1/3
- C.3 2/3
- D.1 1/3
Show answer
Answer: A. 1 2/3
Q2.A and B are emptying pipes and C is a filling pipe. Pipes A and B can empty a full tank in 15 hours and 18 hours, respectively. When all three pipes are opened together, it takes 1 1/4 hours to empty 1/9 part of the tank. In how many hours can pipe C alone fill 2/3 part of the tank?
- A.20
- B.25
- C.30
- D.18
Show answer
Answer: A. 20
Q3.Aruna bought 8 bananas for ₹25 and sold 6 bananas for ₹20. What is her profit or loss percentage?
- A.3 2/3% profit
- B.6 2/3% profit
- C.5 2/3% loss
- D.6 1/3% loss
Show answer
Answer: B. 6 2/3% profit
Q4.MNOP is a quadrilateral in which each of its angles is a right angle. Side MN equals side PO and side NO and its both diagonals do not intersect at 90°. What type of quadrilateral is MNOP?
- A.Kite
- B.Rectangle
- C.Square
- D.Rhombus
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Answer: B. Rectangle
Q5.The median of the data 9, 12, 11, 8, 16, 18, 10, 14, 15, 13, 17, 20, 2, 24 is x. If 2 and 8 are replaced by 21 and 18 in this data, respectively, then the median of the data so obtained is y. What is the value of (3x − y)?
- A.23.5
- B.25
- C.24.5
- D.26
Show answer
Answer: B. 25
Q6.The LCM of two numbers is 20 times their HCF and their HCF is 213. If one of the two numbers is divided by 225, the quotient is 4 and the remainder is 165. The other number is:
- A.639
- B.852
- C.426
- D.1065
Show answer
Answer: B. 852
Q7.Pipe A can fill a tank in 8 hours. Pipes B and C can empty the full tank in 20 hours and 15 hours, respectively. Pipes A and B are opened together for 5 hours, and then B is closed, and C is opened instantly. The tank will be full in a total time of:
- A.10 5/7 hours
- B.15 5/7 hours
- C.10 3/7 hours
- D.11 2/7 hours
Show answer
Answer: B. 15 5/7 hours
Q8.If 4a + 3b = 2c, then find (4a)³ + (3b)³ + (−2c)³.
- A.−72abc
- B.0
- C.72abc
- D.1
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Answer: A. −72abc
Q9.Let 0.27̄ ÷ 3.2̄ = x, where x is a proper fraction in the simplest form. Then the sum of the numerator and the denominator of x is:
- A.346
- B.340
- C.342
- D.296
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Answer: A. 346
Q10.The given table shows the use of chemicals (in litres) in three science laboratories of a school from 2002 to 2006. Year / Biology / Physics / Chemistry: 2002: 52, 61, 47; 2003: 81, 56, 51; 2004: 67, 49, 57; 2005: 91, 67, 69; 2006: 93, 73, 72. What is the ratio of the total use of chemicals (in litres) in the Biology laboratory to the total use of chemicals (in litres) in the Chemistry laboratory from 2002 to 2006?
- A.48 : 37
- B.71 : 96
- C.96 : 71
- D.37 : 48
Show answer
Answer: A. 48 : 37
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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.