RRB-NTPC 2016 Mathematics

Practice subject-wise previous year questions

Question 726

Question 727

Question 728

Question 729

Question 730

Question 731

\(38\tfrac89\) %

\(38\tfrac49\) %

\(37\tfrac89\) %

\(37\tfrac49\) %

Question 732

Question 733

Question 734

Question 735

Question 736

Question 737

Question 738

Question 739

Question 740

Question 741

Question 742

Question 743

Question 744

Question 745

Question 746

Question 747

Question 748

Question 749

Question 750

The ages of father and son are in the ratio of 12:7. Four years from now, their ages will be in the ratio of 5:3. Find the sum of their present ages.

If the ratio of the height of a tower and the length of its shadow on the ground is √3 : 1, then the angle of elevation of the sun is:

P sells an item to Q and earns 12% profit. Q sells it to R and earns a profit of ₹26. If the item was sold to R directly by P at the same price, the percentage of profit would have been 25%. The cost price of the item is ₹_____.

What is the average of prime numbers lying between 5 and 30?

A fruit seller uses a faulty balance that reads 900 grams as 1 kg. He sells apples at ₹150 per kg (as per faulty balance). If his purchase price is ₹120 per kg (actual weight), what is his actual profit percentage?

₹1,472 is divided among Rohit, Maya, and Vikas in such a way that if ₹25, ₹52, and ₹18 be deducted from their respective shares, they have money in the ratio 15:19:17. Find Vikas's amount after deduction.

If the cost of 6 chocolates, 12 chocolates, and x chocolates are in proportion such that x is the third proportional, how many chocolates correspond to x?

The average of 8 numbers is 43. If each number is decreased by 7, what will the new average be?

The mode of the numbers 7, 8, 7, 9, 10 is:

Two trains of lengths 100 m and 150 m are moving in opposite directions at 40 km/h and 60 km/h, respectively. Find the time taken by the trains (in seconds) to cross each other other.

The present ages of A and B are in the ratio 5 : 7. After 6 years, the sum of their ages will be 60 years. What is A's present age?

A wholesaler allows a scheme discount of 25% on an article whose marked price is ₹2,400. The retailer is required to pay the remaining amount in full. What is the net price paid by the retailer?

A sum, when invested at 20% simple interest per annum, amounts to ₹5,040 after 3 years. What is the simple interest (in ₹) on the same sum at the same rate in 2 years?

If 31 × 13 + 18 × 86 – 86 = y, then what is the value of y?

An article is sold at a profit of 38%. If the cost price is increased by ₹20 and the selling price is reduced by ₹45, then the profit would be 37.5%. What is the original cost price (in ₹) of the article?

A trader offers "Buy two, get one free" on a certain pair of trousers. If the marked price of the pair of trousers is ₹ 2700, and the trader still earns a profit of 20%, find the cost price of one pair of trousers for the trader.

A car covers 360 km at a uniform speed in 8 hours. Find its speed in metres per second.

A factory produces three types of widgets: A, B, and C. In one week, 12 units of A (average weight 47 kg each), 8 units of B (average weight 62 kg each), and 15 units of C (average weight 53 kg each) are manufactured. What is the weighted average weight of the widgets produced in that week?

A number is divided into two sections such that one part is 10 more than the other. If their ratio is 6:4, what are the two parts of the number?

A, B and C are partners in a business. A, whose money has been used for 4 months, claims \(\tfrac18\) of the profit. B, whose money has been used for 6 months, claims \(\tfrac13\) of the profit. C had invested ₹ 1560 for 8 months. How much money did A contribute?

If the wages for 9 workers for 8 days are ₹2,880, what will be the wages for 15 workers for 9 days at the same rate?

To prepare a fruit punch, 2 litres of orange juice are mixed with 5 litres of water. How much water is required if 5 litres of orange juice are used?