**Railway RRB Group D 2018 Mathematics Quiz **

Railway RRB Group D Mathematics Quiz 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 Quiz ” based on the latest pattern of your daily practice.

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

**RRB Group D 2018 Mathematics Quiz | Set-10**

**1.The children in three societies A, B and C are in the ratio 2 : 3 : 5. If 10 children are increased in each society, the ratio changes to 4 : 5 : 7. The total number of children before the increase were**

A. 5

B. 45

C. 50

D. 30

**2.What should come in place of the question mark (?) in the following question?**

**300% of 150 = ?% of 600**

A. 75

B. 45

C. 450

D. 133.5

**3.A man buys two cows for Rs. 50,000. He then sold one cow at a loss of 10% and other cow at a profit of 10%, thereby gaining Rs. 600. Find the cost price of each cow.**

A. Rs. 22,000, Rs. 28,000

B. Rs. 26,000, Rs. 24,000

C. Rs. 22,500, Rs. 27,500

D. Rs. 17,500, Rs. 32,500

**4.In an examination a student attempted 20 questions correctly and secured 60 marks. If there were two types of questions (1 marks and 5 marks questions), how many questions of 1 marks did he attempt correctly?
**

A. 5

B. 10

C. 20

D. 40

**5.Flipkart offers a discount of 20% on its product during a sale. It further offers a discount of 10% on payment through credit/debit card. It charges Rs. 60 as shipping cost. Find the final price of the mobile phone with price marked as Rs. 13,999 if payment is done through HDFC credit card**

A. 11997

B. 10931

C. 11119

D. 10139

**6.Fifteen identical robots, each working at the same constant rate, can assemble 50 toys in 8 minutes. How many minutes would it take to 8 such machines to assemble 72 toys?**

A. 25

B. 21.6

C. 28.2

D. 30

**7.Three taps can fill a cistern in 15 minutes, 12 minutes and 10 minutes respectively. The cistern being empty, all the three taps are kept open. After 3 minutes, the second tap is closed. Counting time from that moment, the cistern will be full in
**

A. 5 minutes

B. 2 minutes

C. 3 minutes

D. 1.5 minutes

**8.Sushi bought 1 sac of rice at Rs. 36/Kg and another sac at Rs. 42/kg. If she mixed both kind of rice and sold it at Rs. 40/kg then find her profit or loss percentage.**

**Note: 1 sac of rice contains 25kg of rice.**

A. 2.5 % loss

B. 2.5% profit

C. No profit no loss

D. 3% profit

**9. A train x meter long runs at 120 km/h. If it cross a platform (x + 12) meter long in 51 seconds, find the length of the platform?**

A. 835.5

B. 847.5

C. 912

D. 900.5

**10.A mixture of wine and water contains 80% wine. In 50 liters of such a mixture, how many liters of water are required to increase the percentage of water to 50%?**

A. 20

B. 30

C. 10

D. 40

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