RRB Group D - Mathematics PYQ Quiz 149
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 149 — 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.Find a single discount (approximately) equal to three consecutive discounts of 7%, 10% and 15%.
- A.31.22%
- B.30.16%
- C.28.85%
- D.29.49%
Show answer
Answer: C. 28.85%
Q2.16 m, 20 m and 24 m are the dimensions of a room. Find the length (in m) of the greatest possible scale to measure all dimensions exactly.
- A.5
- B.4
- C.6
- D.9
Show answer
Answer: B. 4
Q3.Ans P and Q together can fill a cistern with water in 12 hours. If P alone can fill the cistern with water in 24 hours, then in how many hours will Q alone fill one-fourth of the same cistern with water?
- A.6
- B.13
- C.12
- D.7
Show answer
Answer: A. 6
Q4.Ans The prices of each article of types P, Q, and R are ₹280, ₹180 and ₹100, respectively. Kishore buys articles of each type in the ratio 3 : 4 : 5 in ₹6,180. How many articles of type Q did he purchase?
- A.12
- B.20
- C.18
- D.9
Show answer
Answer: A. 12
Q5.Ans ₹10,415 is divided among P, Q, and R in such a way that if ₹62, ₹17, and ₹79 are deducted from their respective shares, they have money in the ratio 15:10:14. Find the difference between the original shares of Q and R.
- A.₹1,152
- B.₹1,114
- C.₹902
- D.₹1,202
Show answer
Answer: B. ₹1,114
Q6.Ans Malati bought 5 rose plants and 9 jasmine plants for ₹1,410 and her friend Rani bought 6 rose plants and 5 jasmine plants for ₹1,170. Find the prices (in ₹) of 1 rose and 1 jasmine plant, respectively.
- A.90; 120
- B.120; 90
- C.132; 94
- D.115; 87
Show answer
Answer: B. 120; 90
Q7.Ans The cost of a washing machine is 25% less than the cost of a TV. If the cost of the washing machine increases by 87% and that of the TV decreases by 45%, then what is the percentage change in the total cost of 4 washing machines and 5 TVs?
- A.Increase by 5.2%
- B.Decrease by 4%
- C.Increase by 4.5%
- D.Decrease by 9%
Show answer
Answer: C. Increase by 4.5%
Q8.In a test, B got 50 marks while A got 75 marks, out of 105 maximum marks. What percentage of A’s marks was B’s marks? (Round off your answer to two decimal places.)
- A.105.12%
- B.71.43%
- C.150.57%
- D.66.67%
Show answer
Answer: D. 66.67%
Q9.Simplify: [(3x + 5y)2 − 60xy] ÷ [(3x − 5y)2]
- A.2
- B.−1
- C.1
- D.−2
Show answer
Answer: C. 1
Q10.The number of diagonals of an n-sided regular polygon is 665. What is the value of ‘n’?
- A.33
- B.38
- C.35
- D.40 Section : General Intelligence and Reasoning
Show answer
Answer: B. 38
Frequently Asked Questions
Is RRB Group D - Mathematics PYQ Quiz 149 free to attempt on AajExam?
Yes. RRB Group D - Mathematics PYQ Quiz 149 is completely free. You only need a free AajExam account to track your score, view detailed solutions and unlock cross-attempt analytics.
How long does it take to complete RRB Group D - Mathematics PYQ Quiz 149?
RRB Group D - Mathematics PYQ Quiz 149 runs on a 10-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
Are detailed solutions provided?
Yes. Every question on RRB Group D - Mathematics PYQ Quiz 149 ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.
Can I attempt RRB Group D - Mathematics PYQ Quiz 149 multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
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.