RRB (NTPC) Practice Question and Answer
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Q: A sum was put at simple interest at a certain rate for 2 years. Had it been put at a 3% higher rate; it would have fetched Rs. 72 more. The sum is: 1404 15d1ee80af5eae22172e6f3b4
5d1ee80af5eae22172e6f3b4- 1Rs.1200true
- 2Rs.1500false
- 3Rs. 1600false
- 4Rs. 1800false
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Answer : 1. "Rs.1200"
Q: If x+y+z=6 and \(x^2\)+ \(y^2\) +\(z^2\)=20, then the value of \(x^3\)+\(y^3\)+\(z^3\)-3xyz is 1376 05d1eecc4f5eae22172e6f3c4
5d1eecc4f5eae22172e6f3c4- 164false
- 270false
- 372true
- 476false
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Answer : 3. "72"
Q: The percentage increase in the area of a rectangle, if each of its side is increased by 20% is: 1339 05d1ee449f5eae22172e6f39a
5d1ee449f5eae22172e6f39a- 140%false
- 242%false
- 344%true
- 446%false
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Answer : 3. "44%"
Q: If the numerator of a fraction is increased by 20% and the denominator is not changed, the resultant fraction thus obtained is \({2\over3}\). What was the original fraction? 1339 05d1edc4ef5eae22172e6f37c
5d1edc4ef5eae22172e6f37c- 1\({3\over8}\)false
- 2\({5\over8}\)false
- 3\({4\over9}\)false
- 4\({5\over9}\)true
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Answer : 4. "\({5\over9}\)"
Q: A rectangular carpet has an area of 60 square meter. If its diagonal and longer side together equal 5 times the shorter side, the length of its carpet is: 1323 05d1ee3cec068c021a4048e42
5d1ee3cec068c021a4048e42- 15 mfalse
- 212 mtrue
- 313 mfalse
- 414.5 mfalse
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Answer : 2. "12 m"
Q: Which of the following substance has greatest specific heat? 1309 15d1f2648c068c021a40493b2
5d1f2648c068c021a40493b2- 1Ironfalse
- 2Watertrue
- 3Copperfalse
- 4Mercuryfalse
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Answer : 2. "Water"
Q: Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is: 1265 05d1ee4f3f5eae22172e6f39f
5d1ee4f3f5eae22172e6f39f- 115false
- 216true
- 318false
- 425false
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Answer : 2. "16"
Q: The speed of three cars are in the ratio 5:4:6. The ratio between the time taken by them to travel the same distance is: 1193 05d1edfc2f5eae22172e6f386
5d1edfc2f5eae22172e6f386- 15:4:6false
- 26:4:5false
- 310:12:15false
- 412:15:10true
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Answer : 4. "12:15:10"
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