CAT Practice Question and Answer
8Q: 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
- Show AnswerHide Answer
- Workspace
- SingleChoice
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"? 6506 25b5cc7dfe4d2b41977751659
5b5cc7dfe4d2b41977751659- 1Indo-Gangetic plainfalse
- 2Krishna-Godavari Delta regiontrue
- 3North-East regionfalse
- 4Kerala and Tamil Nadufalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "ज्ञान सूचना प्रसंस्करण प्रणाली"
Explanation :
Answer: B) Knowledge information processing system Explanation:
Q: Exercise is to Gym as Eating is to 6351 05b5cc67ee4d2b4197774c27e
5b5cc67ee4d2b4197774c27e- 1Dietingfalse
- 2Fitnessfalse
- 3Restaurenttrue
- 4Foodfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Restaurent"
Explanation :
Answer: C) Restaurent Explanation: The given words are related in such a manner that, for exercise we go to gym. Simmilarly, for eating we go to restaurent. Hence, Exercise : Gym :: Eating : Restaurent.
Q: A boy can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is ? 6331 05b5cc6d4e4d2b4197774e5ca
5b5cc6d4e4d2b4197774e5ca- 11.8 kmphfalse
- 22 kmphfalse
- 32.2 kmphfalse
- 41.5 kmphtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "1.5 kmph"
Explanation :
Answer: D) 1.5 kmph Explanation: Speed of Boy is B = 4.5 kmph Let the speed of the stream is S = x kmph Then speed in Down Stream = 4.5 + x speed in Up Stream = 4.5 - x As the distance is same, => 4.5 + x = (4.5 - x)2 => 4.5 + x = 9 -2x 3x = 4.5 x = 1.5 kmph
Q: It takes five minutes to pass a rumour from one person to two other persons. The tree of rumour continues. Find how many minutes does it take spread the rumour to 729 persons ? 6265 05b5cc715e4d2b4197774f44a
5b5cc715e4d2b4197774f44a- 145 minfalse
- 225 minfalse
- 330 mintrue
- 436 minfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "30 min"
Explanation :
Answer: C) 30 min Explanation: After 5 mins ..... 3 persons will get rumourAfter 10 mins .... 3x2 + 3 = 9 = 32 persons will get after 15 =5x3 min ......9x2 + 9 =27 = 33 persons will get news...after 5x6 mins ... 36 = 729 persons will get news. Therefore, time taken to spread the rumour to 729 persons is 30 minutes.