Railway Recruitment Board (RRB) conducts recruitment for eligible candidates for various posts in Level 1 every year. There are a huge number of openings in **Railway jobs for Group** across 28 profiles for various railway zones. Candidates preparing for **Railway Exam** must be curious about the types of questions asked, Important RRB Group D Maths Questions to be focussed upon, etc. Keeping in mind the same we have brought you Important RRB Group D Maths Questions which will help you score well on the D-day. Practicing these questions and understanding the concept will be enough to score the highest. So, let’s start the blog on Important RRB Group D Maths Questions.

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**RRB Group D Maths Questions: Solve Important Questions Here**

In this blog, we will be sharing the RRB Group D Maths Questions based on a similar pattern that appeared in the Railway exam over the past few years.

**Solve RRB Group D Maths Questions Part 2 Here**

**Q1) ****A cow is tied to a pole fixed at a corner outside a room with a square base in a grass field. It is tied using a 14 m long rope. The side of the base of the room is 21 m. Find the area of the field over which the cow can graze (in sq. m)**.

A. 440

B. 484

C. 462

D. 420

**Correct Answer: “C”**

**Q2) By selling 20 metres of cloth, a man gains the selling price of 4 metres of cloth. The gain percent is:**

A. 25%

B. 30%

C. 20%

D. 35%

Correct Answer: “A”

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**Q3) A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?**

A. Rs 400

B. Rs 370

C. Rs 410

D. Rs 600

Correct Answer: “A”

**Q4) If a principal at compound interest amounts in two years to ₹3932.6 and in three years to ₹4168.52. Find the original sum.**

A. 3200

B. 3500

C. 2200

D. 3000

**Correct Answer: “A”**

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**Q5) A Bus company has 108 buses. He sold some of them at 9 % profit and rest at 36% profit. Thus he gains 17% on the sale of all the buses. Find the number of buses sold at 36% profit.**

A. 30

B. 32

C. 27

D. None of these

**Correct Answer: “B” **

**Q6) The annual payment or installment of Rs. 700 in 5 years at 10% p.a. SI will discharge a debt of what amount?**

A. Rs 4200

B. Rs 3500

C. Rs 4000

D. Rs 3200

**Correct Answer: “A”**

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**Q7) The investments made by X and Y are in the ratio 3 : 2. If 5% of the total profit is donated and X gets 8,550 as his share of profit then what is the amount of total profit?**

A. Rs. 15,000

B. Rs. 14,000

C. Rs. 13,000

D. Rs. 12,000

**Correct Answer: “A”**

**Q8) Tushar is younger than Gaurav by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Tushar?**

A. 16 years

B. 18 years

C. 28 years

D. 24.5 years

E. None of these

**Correct Answer: “D”**

**Attempt RRB Maths Important Questions Here and Analyze Your Score**

**Q9) Three taps X, Y, Z can fill an overhead tank in 4, 6 and 12 hours respectively. How long would the three taps take to fill the tank if all of them are opened together?**

A. 2 hours

B. 3 hours

C. 4 hours

D. 5 hours

**Correct Answer: “A”**

**Q10) There are two examination rooms X and Y. If 10 students are sent from X to Y, then the number of students in each room is the same. If 20 candidates are sent from Y to X, then the number of students in A is double the number of students in Y. The number of students in the room X is**

B.100

C. 80

D. 200

**Correct Answer: “B”**

**Q11) (sinα – cosα + 1) / (sinα + cosα – 1) = ?**

B. (1+ cosα) / sinα

C. 2 / cosα

D. 2 tanα

**Correct Answer: “A”**

**Q12) √2+√2+2 cos4α**

B. 2 sinα

C. 2 cosα

D. cosα

**Correct Answer: “C”**

**Q13) From the 25L of pure milk, 5L milk is taken out and 5L of water is added, this process is repeated 3 times, the amount of milk left after 3rd replacement is?**

B. 12.4L

C. 12L

D. None of these

**Correct Answer: “A”**

**Q14) Two trains start at the same time from two stations towards each other at 20kmph and 25kmph. When they meet, the faster train cover 80km more distance. Find the distance?**

B. 700 km

C. 650 km

D. 740 km

**Correct Answer: “A”**

**Q15) Insert the missing number.**

a) 16, 33, 65, 131, 261, (….)

a) 16, 33, 65, 131, 261, (….)

B. 521

C. 721

D. 613

**Correct Answer: “A”**

**b) 2, 4, 12, 48, 240, (….)**

B. 1440

C. 1920

D. None of these

**Correct Answer: “B”**

**Q16) In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?**

A. 1/3

B. 3/4

C. 7/9

D. 8/21

**Correct Answer: “A”**

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**Q17) In a group, there are 15 boys and 10 girls. Three of them are selected at random. The probability that 1 girl and 2 boys are selected, is:**

A. 21/46

B. 25/117

C. 1/50

D. None of these

**Correct Answer: “A”**

**Q18) Suppose sin⁸ x + 2 sin⁶ x – sin⁴ x – 2 sin² x + 1 = 0 then cot² x + cot⁴ x – 1 = ?**

A. 1

B. -1

C. -2

D. 0

**Correct Answer: “D”**

**Q19) The angle of elevation of an Airplane flying at a uniform speed from a point on the ground is 30°. After flying for 20 seconds, the elevation changes to 60°. If the airplane is flying at a height of 600m, then the speed of the bird in km/hr is?**

A. 72 √3 km/hr

B. 90 √3 km/hr

C. 108 √3 km/hr

D. None of these

**Correct Answer: “A”**

**Q20) Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is:**

A. 273m

B. 173m

C. 300m

D. 170m

**Correct Answer: “A”**

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This was from us in this blog, RRB Group D Maths Questions. The questions provided above are important for Railway examination. Stay tuned with Oliveboard for more such blogs. We will soon be back with **Important RRB Group D Maths Questions Part 2.**

**Top 10 Railway RRB Group D Maths Questions With Tricks**

Find the top 10 Railway RRB Maths Questions with Tricks important from the examination point of view.

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