RRB (NTPC) Practice Question and Answer
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Q: The percentage increase in the area of a rectangle, if each of its side is increased by 20% is: 1354 05d1ee449f5eae22172e6f39a
5d1ee449f5eae22172e6f39a- 140%false
- 242%false
- 344%true
- 446%false
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Answer : 3. "44%"
Q: In each of the following questions, there is a certain relationship between two given words on one side. Choose the correct alternative in second side. Aeroplane: Cockpit :: Train:? 2332 05d1f0c459e6ce62e3f2040af
5d1f0c459e6ce62e3f2040af- 1Wagonfalse
- 2Coachfalse
- 3Compartmentfalse
- 4Enginetrue
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Answer : 4. "Engine"
Q: If the value of 16a+16b=42. What is the average of (a+b)? 3159 05d1edaa7f5eae22172e6f373
5d1edaa7f5eae22172e6f373- 144false
- 221true
- 324false
- 424false
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Answer : 2. "21"
Q: A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job? 1194 05d1ee563c068c021a4048e48
5d1ee563c068c021a4048e48- 140false
- 250false
- 354false
- 460true
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Answer : 4. "60"
Q: What is the least number to be added to 1500 to make it a perfect square? 2022 05d1ed93f70b1431921736a7e
5d1ed93f70b1431921736a7e- 121true
- 235false
- 343false
- 469false
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Answer : 1. "21"
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? 1368 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: The difference between a number and its two-fifth is 510. What is 10% of that number? 1529 05d1ee195c068c021a4048e3d
5d1ee195c068c021a4048e3d- 112.75false
- 285true
- 3204false
- 4None of thesefalse
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Answer : 2. "85"
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: 1431 15d1ee80af5eae22172e6f3b4
5d1ee80af5eae22172e6f3b4- 1Rs.1200true
- 2Rs.1500false
- 3Rs. 1600false
- 4Rs. 1800false
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Answer : 1. "Rs.1200"
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