RRB-NTPC 2016 Mathematics

Practice subject-wise previous year questions

Question 101

Question 102

Question 103

Question 104

Question 105

Question 106

Question 107

Question 108

Question 109

Question 110

Question 111

Question 112

Question 113

1.4% decrease

1.2% increase

1.32% decrease

1.2% decrease

Question 114

Question 115

Question 116

Question 117

Question 118

Question 119

Question 120

Question 121

Question 122

Question 123

Question 124

Question 125

Two numbers are in the ratio 4 : 5. If their LCM is 240, what is the sum of the two numbers?

The sum of the present ages of a mother and her daughter is 50 years. Five years ago, the mother's age was 7 times the daughter's age. What is the present age of the mother?

A rectangular garden has a length of 25 meters and a width of 18 meters. If a path of uniform width 2 meters is constructed around the outside of the garden, what is the perimeter of the outer edge of the path?

A train, 380 meters long, crosses a stationary train of length 340 m in 16 seconds. Find the speed of the train.

The cost price of 25 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is:

What is the mode of the following data?&nbsp; 40, 41, 42, 51, 45, 43, 45, 43, 51, 40, 51, 54, 46, 50, 55, 47, 42, 46

A tank is normally filled by pipe A in 10 hours. Due to a leak, the tank takes 12 hours to fill. Find the time taken by the leak alone to empty a full tank.

The mean proportional between two positive numbers is 30. If the difference between the two numbers is 45, what is the smaller of the two numbers?

If a sum of ₹70,000 amounts to ₹74,263 in X years under compound interest, compounded annually at 3% per annum, find X.

If ₹25,200 is invested at a simple interest rate of 6% per annum for 4 years, find the interest earned.

A and B can do a piece of work in 12 days and 36 days, respectively. Both work for 4 days and then A leaves. How long (in days) will B take to complete the remaining work?

Three numbers are in the ratio \(3 : 2 : 13\) , and their LCM is 6318. Their HCF is:

If the salary of a person is first increased by 15% and thereafter decreased by 12%, what is the net change in his salary?

Evaluate \(21^3 + (-2)^3 + (-19)^3\)

Which of the following numbers is not divisible by 88?

The average of 5 numbers is 18.5. If one number is removed, the average of the remaining 4 numbers becomes 16. Find the number that was removed.

The ages of a mother and daughter are 36 years and 12 years, respectively. In how many years will the mother be twice the age of the daughter?

The length of each edge of a cube is 10 cm. If a sphere is inscribed inside the cube, what is the ratio of the surface area of the sphere to the outer surface area of the cube?

Pipe A can fill a cistern in 12 hours and another pipe B can empty it in 18 hours. Pipe A is opened first and after 4 hours, pipe B is also opened. In how much total time will the cistern be filled?

Which of the following ratios is the greatest? a)&nbsp; \(7 : 11\) b)&nbsp; \(9 : 14\) c)&nbsp; \(11 : 18\) d)&nbsp; \(13 : 21\)

A sum of money amounts to ₹4,600 in 3 years at 5% simple interest per annum. What is the sum?

Which of the following pairs of numbers is not coprime?

Two buses start at the same time from two towns that are 264 km apart and travel towards each other along the same highway. The first bus travels at a speed of 22 km/h, while the second bus travels at a speed of 26 km/h. After how much time will they meet?

If the simple interest on ₹5,000 for T years at 6% p.a. equals the simple interest on ₹7,500 for 4 years at 4% per annum, then find the value of T.

Chitra gets a discount of 40% on a water cooler whose marked price is ₹2,200. Since she pays by credit card, she gets an additional 20% discount. How much does she pay (in ₹)?

What is the mode of the following data? 40, 41, 42, 51, 45, 43, 45, 43, 51, 40, 51, 54, 46, 50, 55, 47, 42, 46

Which of the following ratios is the greatest? a) \(7 : 11\) b) \(9 : 14\) c) \(11 : 18\) d) \(13 : 21\)