CAT Practice Question and Answer
8Q: What type of bond is joining the two hydrogen atoms? 1833 05b5cc688e4d2b4197774c331
5b5cc688e4d2b4197774c331- 1Hydrophobicfalse
- 2Ionicfalse
- 3Covalenttrue
- 4Hydrophilicfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Covalent"
Explanation :
Answer: C) Covalent Explanation: Covalent type of bonding joins the two hydrogen atoms. Hydrogen atoms in compounds such as H2 and H2O are joined to the molecule with covalent bonds. This is where electrons are shared between the atoms in order to fill there valence shells.
Q: What is the angle made by the hour hand and the minute hand, if the clock shows 9:15 pm ? 1833 05b5cc6d2e4d2b4197774e410
5b5cc6d2e4d2b4197774e410- 1165 degreesfalse
- 2172.5 degreestrue
- 3112.5 degreesfalse
- 4125.5 degreesfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "172.5 degrees"
Explanation :
Answer: B) 172.5 degrees Explanation: The minute hand angle is the easiest since an hour (i.e. 60 minutes) corresponds to the entire 360 degrees, each minute must correspond to 6 degrees. So just multiply the number of minutes in the time by 6 to get the number of degrees for the minute hand. Here 15 minutes corresponds to 15 x 6 = 90 degrees Next, you have to figure out the angle of the hour hand. Since there are 12 hours in the entire 360 degrees, each hour corresponds to 30 degrees. But unless the time is EXACTLY something o'clock, you have to write the time as a fractional number of hours rather than as hours and minutes.Here the time is 9:15 which is (9 + 15/60) = 37/4 hours. Since each hour corresponds to 30 degrees, we multiply 30 to get (37/4)(30) = 277.5 degrees. Since the hour hand is at 277.5 degrees and the minute hand is at 90 degrees, we can subtract to get the angle of separation. 277.5 - 90 = 187.5 =~ 360 - 187.5 = 172.5 degrees.
Q: How many Months of the year have 28 Days? 1832 05b5cc6b8e4d2b4197774d643
5b5cc6b8e4d2b4197774d643- 112true
- 27false
- 35false
- 46false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "12"
Explanation :
Answer: A) 12 Explanation: We have 12 months. In every month we get 28 or more days. So that implies we get 28 days in each and every month.
Q: In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit ? 1831 05b5cc723e4d2b4197774f67c
5b5cc723e4d2b4197774f67c- 160%false
- 250%false
- 370%true
- 445%false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "70%"
Explanation :
Answer: C) 70% Explanation: Let C.P.= Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420. New C.P. = 125% of Rs. 100 = Rs. 125New S.P. = Rs. 420. Profit = Rs. (420 - 125) = Rs. 295 Required percentage = (295/420) * 100 = 70%(approx)
Q: When the demand of a commodity also depends upon prices of the substitutes & complementaries or relative prices then it is called 1831 05b5cc6d3e4d2b4197774e4ff
5b5cc6d3e4d2b4197774e4ff- 1Income-Demandfalse
- 2Price-demandfalse
- 3Cross-Demandtrue
- 4Nonefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Cross-Demand"
Explanation :
Answer: C) Cross-Demand Explanation:
Q: Two trains are running with speeds 30 kmph and 58 kmph respectively in the same direction. A man in the slower train passes the faster train in 18 seconds. Find the length of the faster train? 1830 05b5cc67ee4d2b4197774c23f
5b5cc67ee4d2b4197774c23f- 1105 mtsfalse
- 2115 mtsfalse
- 3120 mtsfalse
- 4140 mtstrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "140 mts"
Explanation :
Answer: D) 140 mts Explanation: Speeds of two trains = 30 kmph and 58 kmph => Relative speed = 58 - 30 = 28 kmph = 28 x 5/18 m/s = 70/9 m/s Given a man takes time to cross length of faster train = 18 sec Now, required Length of faster train = speed x time = 70/9 x 18 = 140 mts.
Q: What are the four main functions of a computer? 1829 05b5cc6b7e4d2b4197774d638
5b5cc6b7e4d2b4197774d638- 1Data, information, bits and bytesfalse
- 2Hardware, software, modeling and operationsfalse
- 3Input, processing, output and storagetrue
- 4Learning, thinking, intelligence and virtuosityfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Input, processing, output and storage"
Explanation :
Answer: C) Input, processing, output and storage Explanation: The four main functions of a computer are :: 1. Input, 2. Processing, 3. Output and 4. Storage
Q: How much time will take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest ? 1829 05b5cc6e0e4d2b4197774eb8e
5b5cc6e0e4d2b4197774eb8e- 14 yearstrue
- 22.5 yearsfalse
- 33.5 yearsfalse
- 42 yearsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "4 years"
Explanation :
Answer: A) 4 years Explanation: Time = (100 x 81) / (450 x 4.5) = 4 years.