RRB Group D - Mathematics PYQ Quiz 171
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 171 — 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.A pen is purchased for ₹40 and sold for ₹50. Find the profit percentage.
- A.25%
- B.20%
- C.35%
- D.22%
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Answer: A. 25%
Q2.The cost price of a whiteboard is ₹2,800. The shopkeeper gave 87% of discount on the cost price. What is the selling price (in ₹)?
- A.364
- B.316
- C.526
- D.399
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Answer: A. 364
Q3.If the fourth proportion to 17, X and 7 is 91, then find the value of X.
- A.222
- B.221
- C.218
- D.219
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Answer: B. 221
Q4.The amount on a sum of ₹7,800 at 20% per annum compound interest, compounded annually, in 2 years will be:
- A.₹11,730
- B.₹11,232
- C.₹10,795
- D.₹10,914
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Answer: B. ₹11,232
Q5.A, B and C can do a piece of work in 3, 2 and 6 days, respectively. How long (in days) will they take to do twice the same work, working together?
- A.4
- B.2
- C.3
- D.6
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Answer: B. 2
Q6.A building is at a distance of 108 feet from point A on the ground. The angle of elevation of the top of the building from point A is θ. If tan θ = 4/3, then find the height (in feet) of the building.
- A.144
- B.135
- C.140
- D.138
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Answer: A. 144
Q7.The average age of 30 students of a class is 12 years. If the age of the teacher is also included, the average age of the whole group becomes 13 years. The age (in years) of the teacher is:
- A.46
- B.44
- C.45
- D.43
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Answer: D. 43
Q8.Three solid metallic cubes of sides 2 cm, 12 cm and 16 cm are melted to form a new cube. Find the surface area of the cube so formed.
- A.1944 cm2
- B.944 cm2
- C.1644 cm2
- D.1744 cm2
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Answer: A. 1944 cm2
Q9.A solid metallic cylinder of radius 4 cm and height 6 cm is melted and recast into smaller solid cylinders of radius 2 cm and height 3 cm. Find the ratio of the total surface areas of one small cylinder to the original cylinder.
- A.1 : 4
- B.2 : 5
- C.1 : 3
- D.1 : 8
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Answer: A. 1 : 4
Q10.A man receives ₹7,700 per month as salary. He saves 25% of his salary every month. His expenditure per month is:
- A.₹5,856
- B.₹5,832
- C.₹5,761
- D.₹5,775
Show answer
Answer: D. ₹5,775
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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.