IIT JEE Practice Question and Answer
8Q: Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is ? 1446 05b5cc6dfe4d2b4197774eac1
5b5cc6dfe4d2b4197774eac1- 11 : 2false
- 23 : 1false
- 34 : 7false
- 43 : 2true
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Answer : 4. "3 : 2"
Explanation :
Answer: D) 3 : 2 Explanation: Let the speeds of the two trains be x m/sec and y m/sec respectively. Then, length of the first train = 27 x meters, and length of the second train = 17 y meters. (27 x + 17 y) / (x + y) = 23 => 27 x + 17 y = 23 x + 23 y => 4 x = 6 y => x/y = 3/2.
Q: Which of the following software firm will acquire Brilliant Basics, Product Design and Customer Experience (CX) company ? 1445 05b5cc6cde4d2b4197774e18b
5b5cc6cde4d2b4197774e18b- 1Infosystrue
- 2Nautics Technologyfalse
- 3Googlefalse
- 4Source code software co.false
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Answer : 1. "Infosys"
Explanation :
Answer: A) Infosys Explanation:
Q: What is the first thing that alcohol effects? 1445 05b5cc6a2e4d2b4197774cb7a
5b5cc6a2e4d2b4197774cb7a- 1Judgementtrue
- 2Speechfalse
- 3Visionfalse
- 4Balancefalse
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Answer : 1. "Judgement"
Explanation :
Answer: A) Judgement Explanation: Alcohol impairs your judgement. Judgement is in your brain stupid and it impairs your brain.
Q: A man purchases two articles, on selling one at loss of 20% while the other at a profit of 25%, he gains the overall profit of 5% than find the ratio of their selling price ? 1444 05b5cc6c7e4d2b4197774de9b
5b5cc6c7e4d2b4197774de9b- 18 : 62.5true
- 255 : 8false
- 38 : 65false
- 464.4 : 9false
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Answer : 1. "8 : 62.5"
Explanation :
Answer: A) 8 : 62.5 Explanation: Article I Article II -20 25% 5% 20% 25% 4 : 5 Now, Selling of first article = (4-20%) = 0.8 Selling of second article = (5+25%) = 6.25 Therefore the ratio of selling price = 8 : 62.5
Q: Which of the following is known as the Electronic City of India? 1444 05b5cc6a2e4d2b4197774cba3
5b5cc6a2e4d2b4197774cba3- 1Hyderabadfalse
- 2Mumbaifalse
- 3Bengalurutrue
- 4Gurgaonfalse
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Answer : 3. "Bengaluru"
Explanation :
Answer: C) Bengaluru Explanation: Bengaluru city is known as the Electronic City of India. Because Electronic City is an IT hub in Anekal taluk of Bengaluru, Karnataka, India. It is one of India's largest electronic industrial parks in 3 phases i.e, in Konappana Agrahara and Doddathogur villages, Bengaluru.
Q: What is 15 as a decimal? 1444 05b5cc6aae4d2b4197774cf8e
5b5cc6aae4d2b4197774cf8e- 10.333false
- 20.666false
- 30.200true
- 40.452false
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Answer : 3. "0.200"
Explanation :
Answer: C) 0.200 Explanation: Here I converted the original fraction to a fraction with the denominator being 10, because decimals can be written in the tenths place. Divide numerator and denominator with '2'15 x 22 = 210 = 0.2
Q: Who of the following appointed as head of Punjab National Bank ? 1443 05b5cc6e1e4d2b4197774ec06
5b5cc6e1e4d2b4197774ec06- 1Dinabandu Mohapatrafalse
- 2Usha Ananthasubramanianfalse
- 3R A Narayanfalse
- 4Sunil Mehtatrue
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Answer : 4. "Sunil Mehta"
Explanation :
Answer: D) Sunil Mehta Explanation: Dinabandu Mohapatra for - Bank of India Usha Ananthasubramanian for - Allahabad Bank R A Sankara Narayan for - Vijaya Bank
Q: A goods truck travels from a place at a certain time and at fixed speed. After 6hrs another truck leaves the same place and move in same direction of uniform speed of 90kmph. The truck catches up the goods truck in 4hrs. Find the speed of the goods truck ? 1443 05b5cc745e4d2b4197774f9fe
5b5cc745e4d2b4197774f9fe- 136 kmphtrue
- 232 kmphfalse
- 328 kmphfalse
- 434 kmphfalse
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Answer : 1. "36 kmph"
Explanation :
Answer: A) 36 kmph Explanation: Let the speed of goods truck be 'p' kmphDistance covered by goods truck in 10hrs (4+6) = Distance covered by other truck in 4 hrs. 10p = 4 x 90p = 36kmph.Therefore, the speed of the goods truck is p = 36 kmph.

