RRB Group D - Mathematics PYQ Quiz 192
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 192 — 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.The sum of two numbers is 205. If one of these numbers is reduced by 5% and the other is increased by 10%, the resulting numbers are equal to each other. Find the smaller of the two initial numbers.
- A.95
- B.100
- C.105
- D.110
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Answer: A. 95
Q2.Which is the smallest fraction among the options given below?
- A.1981/150
- B.1981/155
- C.1981/153
- D.1981/152
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Answer: B. 1981/155
Q3.Find the value of n, when 2⁻⁷ × 2³ⁿ⁺⁴ = 2¹¹ ÷ 2⁵.
- A.2
- B.5
- C.3
- D.4
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Answer: C. 3
Q4.Find the area of a triangle whose sides measure 42 cm, 36 cm and 34 cm, respectively.
- A.112√110 cm²
- B.56√110 cm²
- C.14√55 cm²
- D.28√55 cm²
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Answer: B. 56√110 cm²
Q5.In ΔABC, AD bisects ∠A and D is a point on BC. If m(AC) = 4.2 cm, m(BD) = 4 cm and m(BC) = 7 cm, then find m(AB).
- A.5.2 cm
- B.4.2 cm
- C.4.8 cm
- D.5.6 cm
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Answer: D. 5.6 cm
Q6.At present, the difference of the ages of a mother and son is 30 years. 15 years ago, the mother's age was twice the then age of the son. The present age (in years) of the mother is:
- A.75
- B.90
- C.45
- D.60
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Answer: A. 75
Q7.Which of the following options is the closest approximate value which will come in place of the question mark (?) in the following equation? 18.01 × 3.99 + 9.99 × 3.99 = ?
- A.92
- B.112
- C.122
- D.84
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Answer: B. 112
Q8.The LCM of two numbers is 14 times their HCF. If one of the numbers is 36 and the sum of the LCM and the HCF is 270, then the other number is:
- A.126
- B.144
- C.252
- D.234
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Answer: A. 126
Q9.A and B can do a piece of work in 9 days and 12 days, respectively. A starts the work and they work on alternate days. They can finish the work in:
- A.11 1/4 days
- B.11 days
- C.10 1/4 days
- D.10 2/7 days
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Answer: C. 10 1/4 days
Q10.Find the value of (3 + 11) × 4 ÷ (6 + 1) − 21.
- A.15
- B.13
- C.−13
- D.−15
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Answer: C. −13
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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.