RRB NTPC Mathematics Questions Patterns. Dear candidate, All of you know, RRB NTPC exams will be held in June-September of 2019. So here we are here to help you with math-related issues. We are providing daily quantitative skills quizzes, which will help you to score good marks in this section. We aim to provide the best text content of our readers with test-level questions to help us use the latest patterns. Try this quiz and check out your preparation.

## RRB NTPC Mathematics Questions Patterns

Quarter 3 When the radio price decreased by 20%, its sales increased by 80%. What was the net effect on sale?

When the price of a radio decreases by 20%, its sales increased by 80%. What was the net effect on the sale?

- (a) 44% increase /44% वृद्धि

(b) 44% decrease/44% कमी

(c) 66% increase /66% वृद्धि

(d) 75% increase/75% वृद्धि

**Q4. How much water must be added to 48 ml of alcohol to make a solution that contains 25% alcohol?**

How much water should be mixed in 48 ml alcohol so that 25% alcohol becomes a solution?

(a) 24 ml

(b) 72 ml

(c) 144 ml

(d) 196 ml

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**Q5. Ravi’s salary is 150% of Amit’s salary. Amit’s salary is 80% of Ram’s salary. What is the ratio of Ram’s salary to Ravi’s salary?**

Ravi’s salary is 150% of Amit’s salary. Amit’s salary is 80% of Ram’s salary. What is the ratio of Ravi’s salary to Ram’s salary?

- (a) 1 to 2

(b) 2 to 3

(c) 5 to 6

(d) 6 to 5

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**Q6. A sum of money invested at compound interest amounts in 3 years to Rs. 2,400 and in 4 years to Rs. 2,520. The interest rate per annum is :**

Some amount invested in compound interest is Rs 2,400 in 3 years and Rs 2,520 in 4 years. What is the interest rate per year? (a) 6%

(b) 5%

(c) 10%

(d) 12%

**Q7 By selling a table for Rs 330, a trader gains 10%. Find the cost price of the table.**

By selling a table at 330 rupees, a trader has a 10% profit. Find the purchase price of the table.

(a) 300

(b) 363

(c) 297

(d) 270

**Q8. At what percentage above the cost price must an article be marked so as to gain 33% after allowing the customer a discount of 5% ?**

One object should be marked on how much more than the purchase price, so that the customer can get 33% profit after giving 5% discount?(a) 48%

(b) 43%

(c) 40%

(d) 38%

**Q9. If a dividend of Rs 57,834 is to be divided among Meena, Urmila and Vaishali in the proportion of 3:2:1, find Urmila’s share.**

If a dividend of Rs 57,834 between Meena, Urmila and Vaishali is divided into 3: 2: 1 ratio. So what will be the part of Urmila? (a) Rs 19,281

(b) Rs 17,350

(c) Rs 23,133

(d) Rs 19,278

**Q10. A certain number of men can do a work in 60 days. If there were 8 men more it could be finished in 10 days less. How many men are there ?**

A certain number of men can do a work in 60 days. If there were 8 more men then it could be terminated in less than 10 days. So how many men are there?(a) 75 men/ पुरुष

(b) 40 men/ पुरुष

(c) 48 men / पुरुष

(d) 45 men/ पुरुष

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