IIT JEE Practice Question and Answer
8Q: Which two months in a year have the same calendar? 6573 05b5cc694e4d2b4197774c498
5b5cc694e4d2b4197774c498- 1October, Decemberfalse
- 2April, Novemberfalse
- 3June, Octoberfalse
- 4April, Julytrue
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Answer : 4. "April, July"
Explanation :
Answer: D) April, July Explanation: If the period between the two months is divisible by 7, then that two months will have the same calender . Now,(a). October + November = 31 + 30 = 61 (not divisible by 7) (b). Apr. + May + June + July + Aug. + Sep. + Oct. = 30 + 31 + 30 + 31 + 31 +30 + 31 = 213 (not divisible by 7) (c). June + July + Aug. + Sep. = 30 + 31 + 31 + 30 = 122 (not divisible by 7) (d). Apr. + May + June = 30 + 31 + 30 = 91 (divisible by 7) Hence, April and July months will have the same calendar.
Q: Find the missing number? 15, 30, ? , 40, 8, 48 6563 05b5cc6afe4d2b4197774d264
5b5cc6afe4d2b4197774d264- 121false
- 28false
- 319false
- 410true
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Answer : 4. "10"
Explanation :
Answer: D) 10 Explanation: Given nuber series is 15, 30, ? , 40, 8, 48 Here the number series follows a pattern that 15 15 x 2 = 30 30 ÷ 3 = 10 10 x 4 = 40 40 ÷ 5 = 8 8 x 6 = 48 Hence, the missing number in the series is 10.
Q: A group of six cousins are sitting around a hexagonal table, each one at one corner of the hexagon. (facing the centre inside) Raju is sitting opposite to Rohan. Sweety is sitting next to Navya. Aadya is sitting opposite to Navya, but not next to Kalyan. Karthik has a person sitting between Rohan and himself. If Sweety sits to the right of Karthik, then who is sitting to the left of Karthik ? 6518 05b5cc74fe4d2b4197774fb53
5b5cc74fe4d2b4197774fb53- 1Aadyafalse
- 2Kalyanfalse
- 3Rajutrue
- 4Rohanfalse
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Answer : 3. "Raju"
Explanation :
Answer: C) Raju Explanation: Suppose Sweety is sitting between Rohan and Karthik such that she is to the right of him.....then as Raju is opposite to Rohan then Raju must be to the left of Karthik.
Q: A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C which is at midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ? 6516 15b5cc6e9e4d2b4197774ee41
5b5cc6e9e4d2b4197774ee41- 1180 kmtrue
- 2160 kmfalse
- 3140 kmfalse
- 4120 kmfalse
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Answer : 1. "180 km"
Explanation :
Answer: A) 180 km Explanation: Speed in downstream = (14 + 4) km/hr = 18 km/hr; Speed in upstream = (14 – 4) km/hr = 10 km/hr. Let the distance between A and B be x km. Then, x/18 + (x/2)/10 = 19 ⇔ x/18 + x/20 = 19 ⇒ x = 180 km.
Q: Which region in India is known as the "Rice Bowl of India"? 6505 25b5cc7dfe4d2b41977751659
5b5cc7dfe4d2b41977751659- 1Indo-Gangetic plainfalse
- 2Krishna-Godavari Delta regiontrue
- 3North-East regionfalse
- 4Kerala and Tamil Nadufalse
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Answer : 2. "Krishna-Godavari Delta region"
Explanation :
Answer: B) Krishna-Godavari Delta region Explanation: In India, the Krishna-Godavari Delta region is called as "Rice Bowl of India". Coming to the Indian State, Chhattisgarh is known as Rice Bowl of India.
Q: In which atmospheric layer are the communication satellites located? 6438 05b5cc642e4d2b4197774bb6d
5b5cc642e4d2b4197774bb6d- 1Thermospheretrue
- 2Tropospherefalse
- 3Mesospherefalse
- 4Stratospherefalse
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Answer : 1. "Thermosphere"
Explanation :
Answer: A) Thermosphere Explanation: In terms of the Earth's atmosphere, they occupy regions called the thermosphere and the exosphere. The layer through which a satellite orbits depends on the satellite's function and the kind of orbit it has. The thermosphere is a region of very high temperature that extends from the top of the mesosphere at around 85 kilometers (53 miles) up to 640 kilometers (400 miles) above the Earth's surface. It is called the thermosphere because temperatures can reach up to 1,500 degrees Celsius (2,732 degrees Fahrenheit). However, despite the high temperatures, the pressure is very low, so satellites don't suffer heat damage.
Q: The second day of a month is Sunday, What will be the last day of the next month which has 31 days ? 6423 05b5cc6dee4d2b4197774ea94
5b5cc6dee4d2b4197774ea94- 1Fridayfalse
- 2Saturdayfalse
- 3Sundayfalse
- 4Can't be determinedtrue
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Answer : 4. "Can't be determined"
Explanation :
Answer: D) Can't be determined Explanation: We cannot find out the answer because the number of days of the current month is not given.
Q: पांचवीं पीढ़ी के कंप्यूटर के रूप में भी जाना जाता है 6361 05b5cc678e4d2b4197774c16f
5b5cc678e4d2b4197774c16f- 1बड़े पैमाने पर एकीकरण (VLSI)false
- 2ज्ञान सूचना प्रसंस्करण प्रणालीtrue
- 3दोनो A & Bfalse
- 4इनमे से कोई नहीfalse
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Answer : 2. "ज्ञान सूचना प्रसंस्करण प्रणाली"
Explanation :
Answer: B) Knowledge information processing system Explanation: