**Railway RRB Group D 2018 Mathematics Practice Questions**

Railway RRB Group D Mathematics Questions 2018. Welcome to the www.letsstudytogether.co online **Railway RRB Group D** section. If you are preparing Railway, RRB ALP and RRB Group D Exams 2018, you will come across a section on “General Mathematics”. Here we are providing you with “Important RRB Group D 2018 Mathematics Practice Questions” based on the latest pattern of your daily practice.

This “Railway RRB Group D 2018 Mathematics Practice Questions“is also important for other Railway exams such as RRB ALP & Technicians Exam 2018.

**RRB Group D 2018 Mathematics Practice Questions | Set-3**

**1.Simplify up to three decimal places**

√17.64 – (2.3)^{2} – 38.39 × 2.3 + (43.5) × (3.7)

A. 65.238

B. 71.563

C. 82.525

D. 98.643

**2.A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A’s share in profit is Rs. 8,550, then total profit is
**

A. Rs. 14,250

B. Rs. 15,760

C. Rs. 15,735

D. Rs. 15,000

**3. What is the discount percentage offered on a book having marked price Rs. 2150 being sold at Rs. 1892?**

A. 12

B. 13

C. 14

D. 16

**4.Rakesh can do the 6 times the actual work in 36 days while Jitu can do the actual work in 3 days. In how many days will both working together complete the 3 times of the original work?
**

A. 6

B. 10

C. 12

D. 15

**5.Pipe A alone can fill a tank in 8 hours. Pipe B alone can fill it in 6 hours. If both the pipes are opened and after 2 hours Pipe A is closed, the other pipe will fill the tank is
**

A. 6 hours

B. 3 ½ hours

C. 4 hours

D. 2 ½ hours

**6.Find the average of 45 natural numbers starting from 454.
**

A. 475

B. 476

C. 477

D. 478

**7.Find the area of the largest square that can be made inside a right angle triangle having sides 6 cm, 8 cm & 10 cm when one of vertices of the square coincide with the vertex of right angle of the triangle?
**

A. 576/49 cm^{2}

B. 24 cm^{2}

C. 24/7 cm^{2}

D. None of these

**8.The age of a man is 4 times that of his son. 10 yrs ago, the man was nine times as old as his son was at that time. What is the present age of the son?**

A. 16 yrs

B. 32 yrs

C. 64 yrs

D. 24 yrs

**9.A boat covers 9 km upstream and 38 km downstream in 3 hrs, while it covers 45 km upstream and 57 km downstream in 8 hrs. What is the speed of the current?**

A. 2 km/hr

B. 3 km/hr

C.4 km/hr

D.5 km/hr

**10. In question, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
**

1, 3, 4, 8, 15, 27, ?

A. 64

B. 50

C. 216

D. 224

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