RRB-NTPC 2016 Mathematics

Practice subject-wise previous year questions

Question 476

Question 477

Question 478

Question 479

Question 480

Question 481

\(xy + x^2\)

\(x^2 + y^2\)

\(xy + y^2\)

\(x^2 - y^2\)

Question 482

Question 483

Question 484

Question 485

Question 486

Question 487

Question 488

Question 489

Question 490

Question 491

Question 492

Question 493

Question 494

Question 495

Question 496

Question 497

Question 498

Question 499

Question 500

The price of a jacket is first increased by 20% and then decreased by 25%. If the original price was ₹600, what is the final price of the jacket?

Evaluate \(24^3 + (-5)^3 + (-19)^3\) .

Mary is 3 years older than her sister. If their combined age is 27 years, what is Mary's age (in years)?

A smart city metro line had an average of 4,500 daily riders last month. This month, it averaged 4,860 riders per day. What is the percentage growth in ridership?

Find the mean proportional between \((x + y)^2\) and \((x - y)^2\) , (x and y are natural number and x &gt; y).

The marked price of a sweater is ₹600. The wholesaler offers a 20% discount to a retailer for up to 20 sweaters and a 25% discount if the order exceeds 20 sweaters. Find the amount paid by the retailer if he orders 22 such sweaters.

Ritu gets a discount of 40% on an oven whose marked price is ₹1000. Since she pays by credit card, she gets an additional 22% discount. How much does she pay (in ₹)?

A recipe uses 2 cups of rice for every 3 cups of water. If you want to cook using 6 cups of rice, how much water will you need?

The sum of two positive numbers is 36 and their product is 180. The positive difference between them is:

The sides of a triangle are 75 cm, 21 cm, and 72 cm. What is the length (in cm) of its altitude corresponding to the side with a length of 21 cm?

A, B and C started a business, investing amounts of ₹1,960, ₹1,660, and ₹1,130 respectively. If B's share in the profit earned by them is ₹968, what is the difference in the profit (in ₹) earned by A and C?

What will be the total amount payable after 3 years on a principal of ₹4,000 at 5% per annum, compounded annually?

Chetan's salary is ₹17,000 per month. He spends ₹4,000 on house rent, ₹2,500 on bills, and the rest of the amount is his monthly savings. Find his savings (in ₹) in a year, if in the month of his birthday, he spent his complete monthly savings for a birthday celebration.

A trader buys 20 kg of rice for ₹1,000. He sells the rice at the rate of ₹60 per kg. What is the percentage profit made by the trader?

What is the smallest 5-digit number that is exactly divisible by 12, 15 and 20?

The average age of 7 students in a class is 17 years. When a new student join the class, the average age of the class becomes 18 years. Find the age of the new student.

A military camp has provisions for 360 soldiers for 50 days. After 10 days, 120 more soldiers arrive at the camp. Assuming the daily consumption per soldier remains constant, for how many more days will the remaining provisions last?

If 45% of a number exceeds 20% of it by 36, then the number is:

A car travels the first 60 km at 45 km/hr and the next 90 km at 60 km/hr. What is the average speed for the entire journey?&nbsp; (Round off your answer to two decimal places.)

If the sum of the ages of a father and son is 56 years and the father is 24 years older than his son, what is the son's age (in years)?

Two taps can fill a cistern in 4 hours and 9 hours, respectively. A third tap can empty it in 9 hours. How long (in hours) will it take to fill one-fourth of the empty cistern if all the taps are opened together?

Two trains are running on parallel tracks in the same direction. Train A is 90 m long and moves at 54 km/h. Train B is 75 m long and moves at 36 km/h. How much time will Train A take to completely overtake Train B?

What is the mean proportional between 0.0009 and 0.25?

A grocery store gives a Buy 5, Get 2 Free offer. The price of each item is ₹300. A customer needs a total of 21 items and procures the items under this scheme. What is the effective cost per item? (Round off your answer to two decimal places.)

Find the mean proportional between \((x + y)^2\) and \((x - y)^2\) , (x and y are natural number and x > y).

A car travels the first 60 km at 45 km/hr and the next 90 km at 60 km/hr. What is the average speed for the entire journey? (Round off your answer to two decimal places.)