RRB-NTPC 2016 Mathematics

Practice subject-wise previous year questions

Question 301

Question 302

Question 303

Question 304

Question 305

Question 306

Question 307

Question 308

Question 309

10.2 % increase

9.2% increase

10.2% decrease

9.2% decrease

Question 310

Question 311

Question 312

Question 313

Question 314

Question 315

Question 316

Question 317

10.93% profit

11.39% profit

Question 318

Question 319

Question 320

Question 321

Question 322

Question 323

Question 324

Question 325

Two trains of lengths 250 m and 300 m run in opposite directions at 72 km/hr and 108 km/hr. In how many seconds will they completely cross each other?

In an apartment complex, the monthly electricity consumption (in units) for five flats is 320, 400, 360, 340, and 380. If the residents want to know the average monthly consumption (in units) per flat by using the direct method, what value will they obtain?

A family consumes 12 units of electricity per day. Cost per unit is ₹8. How much do they pay for a 31-day month?

If 45% of a number exceeds 20% of it by 48, then the number is:

A merchant buys tea at ₹100 per kg and sells it using a 800 g weight as 1 kg, after marking the price up by 25% and giving a discount of 20%. What is his profit per kg?

The fourth proportional to three positive numbers is 120. If the first number is twice the second, and the third number is five times the first, then find the sum of all the three numbers.

An article is sold at a loss of 12% on its cost price. If the same article were sold for ₹84 more than its original selling price, the seller would make a profit of 8% on the same cost price. What is the cost price of the article?

An investment decreases by 30% in the first year, increases by 30% in the second year, and then increases by 20% in the third year. What is the overall percentage change from the initial value?

A shopkeeper offers a fixed discount of 15% on rice and 100 gm rice free with every purchase of 1.9 kg rice. Find the overall discount percent offered by him on rice.

Seven years ago Ramu was five times as old as his son. The present age difference between Ramu and his son is 28 years. Find the sum of their present ages.

A and B can do a piece of work in 12 days and 33 days, respectively. Both work for 4 days and then A leaves. How long (in days) will B take to complete the remaining work?

A rectangular garden has a length of 16 meters and a width of x meters. If the width is the mean proportional between 4 meters and 64 meters, what is the value of x?

If the consecutive angles of a parallelogram are in the ratio \(2:3\) , what is the measure of the smaller angle?

A group consists of 25% boys, 55% girls, and the rest are teachers. Their average weights are 50 kg, 55 kg, and 65 kg, respectively. What is the average weight (in kg) of the group?

The price of an item is increased by 15% and then by 20%. Now the price of the item is decreased so that the overall effective increment in the price is 5%. The price is decreased approximately by ____%.

Arpit buys 3 bed sheets for ₹3,951. He sells the first at a profit of ₹300, the second at a loss of ₹50, and the third at a profit of ₹200. What is the overall profit or loss percentage? &nbsp;(Round off your result to two decimal places)

At a health club, 40% of the members are women and 60% of the members are men. If the average age of the men is 51 years and the average age of the women is 55 years, what is the average age (in years) of all the members?

A bus covers 150 km at 60 km/hr, 120 km at 80 km/hr, and 180 km at 90 km/hr without any stops. What is the average speed of the bus for the entire journey?

Two trains are moving in opposite directions at speeds of 36 km/h and 54 km/h. If their lengths are 100 m and 150 m, respectively, how much time will they take to cross each other completely?

The average of 6.5, 10.8, 19.9 and a is 18. The value of a is:

The price of sugar is increased by 3%. How much percent the consumption of sugar must be reduced so as not to increase the expenditure on sugar? (correct your answer to one decimal place)

The ratio of the age of a father and his son at present is \(6:1\) . After 5 years from now, the ratio will become \(7:2\) . Find the present age of the son.

After successive discounts of 15% and 10%, a customer pays ₹3,672. What was the marked price?

If 27 and 81 are the first two terms of a proportion and the third proportional to these numbers is used as the length of a rectangle whose width is 4 units, what is the numeric value of the area of the rectangle?

Arpit buys 3 bed sheets for ₹3,951. He sells the first at a profit of ₹300, the second at a loss of ₹50, and the third at a profit of ₹200. What is the overall profit or loss percentage? (Round off your result to two decimal places)