RRB-NTPC 2016 Mathematics

Practice subject-wise previous year questions

Question 151

Question 152

Question 153

Question 154

Question 155

Question 156

Question 157

Question 158

89 \(\pi\) m

85 \(\pi\) m

81 \(\pi\) m

82 \(\pi\) m

Question 159

Question 160

Question 161

Question 162

Question 163

Question 164

Question 165

Question 166

Question 167

Question 168

Question 169

Question 170

All have the same proportion

Question 171

Question 172

Question 173

Question 174

Question 175

Yogesh invested a certain sum of money at 10% per annum. After 2 years, he received ₹147 as compound interest, compounded annually. Find the corresponding simple interest (in ₹) for 2 years at the same rate.

The enrolment of students in an institution increased by 10% in April compared to the number of students in March and then decreased by 5%, resulting in 1045 students in June. Find the number of students in March.

Evaluate \(20^3 + (-9)^3 + (-11)^3\)

The difference between a discount of 35% and two successive discounts of 20% and 15% on a certain marked price is ₹70. Find the marked price (rounded off to the nearest integer).

Two taps can fill a cistern in 4 hours and 8 hours, respectively. A third tap can empty it in 4 hours. How long (in hours) will it take to fill one-fourth of the empty cistern if all the taps are opened together?

If 9 workers can build a wall in 12 days, how many days will 6 workers take to build the same wall, assuming they work at the same rate?

Pooja gets a discount of 17% on a dryer whose marked price is ₹2,000. Since she pays by credit card, she gets an additional 10% discount. How much does she pay (in ₹)?

A sum of ₹25,000 is invested at 2% per annum compounded annually. Find the compound interest after 2 years.

If the third proportional to 4 and 6 is used as the base of a rectangle, and the first number (4) is its height, what is the area of the rectangle?

Find the measure of the unknown interior angle in an irregular hexagon with angles &nbsp;140°, 80°, 145°, 155°, and 100°.

Which of the following ratios is equal to \(3:2\) ?

If the interest on a sum of ₹y at 4% per annum compounded annually for 2 years is ₹765, then the total amount payable at the end of the two-year period will be _________.

A pair of shoes is marked at ₹2800 and is subject to a trade discount of 18%. Under a special offer, a customer buys 5 pairs at the discounted price and gets an additional 2 pairs at 50% off the discounted price. Find the total cost to the customer for 7 pairs of shoes.

Three numbers are in the ratio \(3:7:2\) , and their LCM is 8820. Their HCF is:

Pipes A and B together can fill a cistern in 10 hours. Pipes B and C together can fill the same cistern in 20 hours, and pipes C and A together can fill it in 12 hours. Find the time taken by pipe B alone to fill the cistern.

A spherical water tank has an internal diameter of 10 meters. If the tank is coated with a material that costs ₹5 per square meter, what is the total cost to coat the entire internal surface? (Use π = 3.14)

The average monthly income of six employees in an office is ₹24,000. When a new employee joins the office, the average income of all seven employees becomes ₹25,500. What is the monthly income of the new employee?

In a college, the ratio of science to arts students is different for each of its three batches. In Batch A, the ratio is \(5:8\) , in Batch B it is \(7:11\) , and in Batch C it is \(3:5\) . Which batch has the highest proportion of science students?

If the third proportional to 4 and 20 is m and the third proportional to m and 50 is n, what is the value of n?

In \(\triangle XYZ\) , \(XY = XZ\) and \(\angle X = 40°\) , what is the measure of \(\angle Z\) ?

The mean of the following data is 12.5. Find the missing frequency p. Data Values (x): 10, 15 Frequency (f): 5, p

A delivery van covers the first 100 km at 50 km/h, the next 150 km at 60 km/h, and the last 50 km at 40 km/h. What is the average speed for the entire journey (correct to two places of decimal)?

The population of a town increases by 10% in the year 2015 and decreases by 15% in the year 2016. If the population of the town at the end of the year 2016 is 1,87,000, find the population of the town in the beginning of the year 2015.

Find the measure of the unknown interior angle in an irregular hexagon with angles 140°, 80°, 145°, 155°, and 100°.