RRB-NTPC 2016 Mathematics

Practice subject-wise previous year questions

Question 451

Question 452

Question 453

Question 454

Question 455

Question 456

Question 457

Question 458

Question 459

Question 460

Question 461

Question 462

Question 463

Question 464

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Question 475

The following ratios are given: \(a : b = 2 : 3\) \(b : c = 4 : 5\) \(c : d = 3 : 2\) \(d : e = 5 : 4\) What is the value of the ratio a : e?

If a trader purchases 50 notebooks for ₹1000 and sells all at a gain of 20%, what is the selling price of each notebook?

A marker costs ₹43. A store offers “Buy 5, Get 2 Free”. What is the effective price per marker? [Give your answer in ₹, correct to two places after decimal.]

The sum of the present ages of a father and his son is 50 years. Five years ago, the father’s age was three times the son’s age. By how many years is the father older than his son?

A scooter travels 40 km at 20 km/hr and returns 60 km at the same speed. What is the average speed?

A tech firm's revenue decreased from ₹2,50,000 to ₹2,12,500. What is the percentage decrease in the revenue?

The LCM of the numbers 5, 3.2 and 0.03 is:

If the income tax is increased by 18%, the net income is reduced by 2%. Find the original rate of income tax.

An article is sold at a profit of 58%. If the cost price is increased by ₹20 and the selling price is reduced by ₹74, then the profit would be 52.5%. What is the original cost price (in ₹) of the article?

What sum (in ₹) will earn a simple interest of ₹1,440 in 3 years at 8% per year rate of interest?

A shopkeeper buys two types of rice costing ₹32 per kg and ₹40 per kg. He buys a total of 45 kg of rice for ₹1600. The ratio of the quantity (in kg) of rice costing ₹32 per kg to that costing ₹40 per kg is

Two taps can fill a cistern in 4 hours and 12 hours, respectively. A third tap can empty it in 12 hours. How long (in hours) will it take to fill one-fourth of the empty cistern if all the taps are opened together?

A total of money is split among E, F, G and H in the ratio 9:7:5:3. If G gets ₹4000 less than F, how much does E receive?

The arithmetic mean of 10 observations is 42. Three of the observations are 30, 38, and 50. The remaining six observations have an average of 45. Find the missing observation.

A sum of ₹20,000 amounts to ₹21,218 in 2 years under compound interest, compounded annually. Find the rate of interest per annum.

A sum of ₹8,000 is borrowed at a simple interest rate of 5% per annum for 3 years. What is the simple interest payable?

The angle of elevation of the top of a building from a point 40 m away is 45°. What is the height of the building?

How many sides does a regular polygon have if each interior angle measures 150°?

A company has 10 officers and 30 clerks. The average monthly salary of an officer is ₹45,000 and that of a clerk is ₹25,000. What is the average salary of the entire staff?

The largest four-digit number which when divided by 12, 13 and 7 leaves remainder 3 in each case is:

A cyclist travels 40 meters in 8 seconds. What is his speed?

The HCF and LCM of two positive integers are 36 and 7,560, respectively. If one of the numbers is 540, what is the other number?

The diagonals of a rhombus are 19 cm and 29 cm. Find its area.

If \(a:b = 12:13\) and \(b:c = 4:5\) , what is \(a:c\) ?