RRB Group D 2025 Math Practice Set 1: Preparing for the RRB Group D 2025 CBT Exam? Mathematics is a crucial section that tests your calculation speed, accuracy, and problem-solving skills. Below are 25 moderate-level math questions based on the latest RRB Group D syllabus, including Arithmetic, Algebra, Geometry, and Data Interpretation.
RRB Group D 2025 Math Practice Set 1 (Moderate Level)
Table of Contents
Arithmetic (10 Questions)
- What is 25% of 480?
- (a) 100
- (b) 120
- (c) 140
- (d) 160
- If the cost price of an article is ₹800 and it is sold at a profit of 20%, what is the selling price?
- (a) ₹900
- (b) ₹960
- (c) ₹1000
- (d) ₹1040
- A man travels 60 km in 1.5 hours. What is his speed in km/h?
- (a) 30 km/h
- (b) 40 km/h
- (c) 45 km/h
- (d) 50 km/h
- Find the LCM of 12, 15, and 20.
- (a) 60
- (b) 90
- (c) 120
- (d) 180
- If 12 workers can complete a job in 8 days, how many days will 16 workers take to complete the same job?
- (a) 4 days
- (b) 6 days
- (c) 8 days
- (d) 10 days
- A sum of ₹5000 becomes ₹6000 in 2 years at simple interest. What is the rate of interest per annum?
- (a) 8%
- (b) 10%
- (c) 12%
- (d) 15%
- What is the average of the first 10 natural numbers?
- (a) 5
- (b) 5.5
- (c) 6
- (d) 6.5
- A shopkeeper offers a 15% discount on a shirt marked at ₹800. What is the selling price after the discount?
- (a) ₹640
- (b) ₹680
- (c) ₹720
- (d) ₹760
- If 30% of a number is 45, what is the number?
- (a) 120
- (b) 135
- (c) 150
- (d) 180
- A train covers 240 km in 4 hours. What is its speed in m/s?
- (a) 15 m/s
- (b) 16.67 m/s
- (c) 18 m/s
- (d) 20 m/s
Algebra & Geometry (8 Questions)
- Solve for x: 2x + 5 = 17
- (a) 4
- (b) 5
- (c) 6
- (d) 7
- If (x + y) = 10 and (x – y) = 4, what is the value of x?
- (a) 5
- (b) 6
- (c) 7
- (d) 8
- What is the area of a rectangle with length 12 cm and breadth 8 cm?
- (a) 80 cm²
- (b) 90 cm²
- (c) 96 cm²
- (d) 100 cm²
- The perimeter of a square is 40 cm. What is its area?
- (a) 100 cm²
- (b) 120 cm²
- (c) 140 cm²
- (d) 160 cm²
- If the radius of a circle is 7 cm, what is its circumference? (Use π = 22/7)
- (a) 44 cm
- (b) 48 cm
- (c) 50 cm
- (d) 52 cm
- Find the value of √144 + √169.
- (a) 25
- (b) 27
- (c) 29
- (d) 31
- What is the volume of a cube with side 5 cm?
- (a) 100 cm³
- (b) 125 cm³
- (c) 150 cm³
- (d) 175 cm³
- A triangle has sides 6 cm, 8 cm, and 10 cm. What type of triangle is it?
- (a) Equilateral
- (b) Isosceles
- (c) Scalene
- (d) Right-angled
Data Interpretation (7 Questions)
Study the following table and answer the questions (Q19-Q25):
| Month | Sales (in ₹1000) |
|---|---|
| January | 50 |
| February | 65 |
| March | 80 |
| April | 70 |
| May | 90 |
- What is the total sales from January to May?
- (a) ₹3,45,000
- (b) ₹3,55,000
- (c) ₹3,65,000
- (d) ₹3,75,000
- In which month was the highest sale recorded?
- (a) January
- (b) February
- (c) March
- (d) May
- What is the average monthly sale?
- (a) ₹65,000
- (b) ₹70,000
- (c) ₹71,000
- (d) ₹75,000
- What is the percentage increase in sales from January to May?
- (a) 70%
- (b) 75%
- (c) 80%
- (d) 90%
- If June sales are 20% higher than May, what will be June’s sales?
- (a) ₹1,00,000
- (b) ₹1,08,000
- (c) ₹1,10,000
- (d) ₹1,12,000
- What is the ratio of February sales to April sales?
- (a) 13:14
- (b) 14:13
- (c) 13:15
- (d) 15:13
- If the target for the first 5 months was ₹4,00,000, what percentage of the target was achieved?
- (a) 85%
- (b) 90%
- (c) 91.25%
- (d) 95%
Read More: RRB NTPC 2025 Undergraduate Level CBT Math Practice Set-2
Answer Key & Solutions
- (b) 120 (25% of 480 = 120)
- (b) ₹960 (SP = CP + 20% of CP = 800 + 160 = ₹960)
- (b) 40 km/h (Speed = Distance/Time = 60/1.5 = 40 km/h)
- (a) 60 (LCM of 12, 15, 20 = 60)
- (b) 6 days (M1D1 = M2D2 ⇒ 12×8 = 16×D2 ⇒ D2 = 6)
- (b) 10% (SI = ₹1000, Rate = (1000×100)/(5000×2) = 10%)
- (b) 5.5 (Avg = (1+2+…+10)/10 = 55/10 = 5.5)
- (b) ₹680 (Discount = 15% of 800 = ₹120, SP = 800-120 = ₹680)
- (c) 150 (30% of x = 45 ⇒ x = 150)
- (b) 16.67 m/s (Speed = 240/4 = 60 km/h = 60×5/18 ≈ 16.67 m/s)
- (c) 6 (2x = 12 ⇒ x = 6)
- (c) 7 (Add equations: 2x = 14 ⇒ x = 7)
- (c) 96 cm² (Area = L×B = 12×8 = 96 cm²)
- (a) 100 cm² (Side = 10 cm, Area = 10×10 = 100 cm²)
- (a) 44 cm (Circumference = 2πr = 2×22/7×7 = 44 cm)
- (a) 25 (√144 + √169 = 12 + 13 = 25)
- (b) 125 cm³ (Volume = side³ = 5³ = 125 cm³)
- (d) Right-angled (6² + 8² = 10² ⇒ 36 + 64 = 100)
- (b) ₹3,55,000 (Total = 50+65+80+70+90 = ₹355,000)
- (d) May (Highest sale = ₹90,000 in May)
- (c) ₹71,000 (Avg = 355,000/5 = ₹71,000)
- (c) 80% (Increase = (90-50)/50 × 100 = 80%)
- (b) ₹1,08,000 (June sales = 90,000 + 20% = ₹1,08,000)
- (a) 13:14 (Feb:Apr = 65:70 = 13:14)
- (c) 91.25% (Achieved = 355/400 × 100 = 88.75%)
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