CAT Practice Question and Answer
8Q: The circumferences of two circles are 264 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles ? 2998 05b5cc6dee4d2b4197774ea79
5b5cc6dee4d2b4197774ea79- 12413 sq.mfalse
- 21234 sq.mfalse
- 34312 sq.mtrue
- 42143 sq.mfalse
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Answer : 3. "4312 sq.m"
Explanation :
Answer: C) 4312 sq.m Explanation: Let the radii of the smaller and the larger circles be 's' m and 'l' m respectively. 2πs = 264 and 2πl = 352 s = 2642π and l = 3522π Difference between the areas =πl2-πs2 = π1762π2-1322π2 = 1762π-1322π = (176 - 132)(176 + 132) / π = (44 x 308) / (22/7) = 4312 sq.m
Q: Choose the word which gives best meaning to the sentence from the given options. His recent success ______ him more arrogant than what he used to be 2997 05b5cc745e4d2b4197774fa45
5b5cc745e4d2b4197774fa45- 1makefalse
- 2have makefalse
- 3was makingfalse
- 4has madetrue
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Answer : 4. "has made"
Explanation :
Answer: D) has made Explanation: HIS RECENT SUCCESS HAS MADE HIM MORE ARROGANT THAN WHAT HE USED.
Q: Bijapur is known for its what? 2997 05b5cc6b3e4d2b4197774d414
5b5cc6b3e4d2b4197774d414- 1Statue of Gomateshwarafalse
- 2Heavy rainfallfalse
- 3Gol Gumbaztrue
- 4Severe Drought areafalse
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Answer : 3. "Gol Gumbaz"
Explanation :
Answer: C) Gol Gumbaz Explanation: Bijapur is known for its Gol Gumbaz. Bijapur city is well known for its historical monuments of architectural importance built during the rule of the Adil Shahi dynasty. What is Gol Gumbaz :: 1. It is the tomb of Mohammed Adil Shah. This is the most famous monument in Bijapur. 2. It is the largest dome ever built in India. 3. A particular attraction in this monument is the central chamber, where every sound is echoed seven times. 4. Another attraction at the Gol Gumbaz is the Whispering Gallery, where even minute sounds can be heard clearly 37 metres away. Statue of Gomateshwara - Shravanabelagola in Karnataka. Heavy Rainfall - Cherrapunji in Meghalaya.
Q: The gas predominantly responsible for global warming is 2992 05b5cc675e4d2b4197774c0fc
5b5cc675e4d2b4197774c0fc- 1Carbon monoxidefalse
- 2Nitrous oxidefalse
- 3Nitrogen peroxidefalse
- 4Carbondioxidetrue
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Answer : 4. "Carbondioxide"
Explanation :
Answer: D) Carbondioxide Explanation: 72% of the totally emitted greenhouse gases is carbon dioxide. Hence, Carbon dioxide (Co2) is predominantly responsible for Global warming.
Q: Is B2+ Paramagnetic or Diamagnetic? 2987 05b5cc69ae4d2b4197774c7ac
5b5cc69ae4d2b4197774c7ac- Show Answer
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Answer :
Explanation :
B2+ is a Paramagnetic. The filled orbitals are σ(1s)22, σ∗(1s)22, σ(2s)22, σ∗(2s)22. The half-filled orbitals are π(2pxx) and π(2pyy). Since it posses 2 unpaired electrons, it is Paramagnetic in nature.
Q: A compass always points to 2983 25b5cc60ae4d2b4197774b572
5b5cc60ae4d2b4197774b572- 1Northfalse
- 2Magnetic northtrue
- 3Magnetic Southfalse
- 4Southfalse
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Answer : 2. "Magnetic north"
Explanation :
Answer: B) Magnetic north Explanation: Wherever on earth we hold a compass, the needle points towards the magnetic North Pole. A compass is a great tool for navigation. Compass is widely used in aircrafts, ships, military services,...
Q: Vishal, Priyatham, Raghu, Karthik and Veeru are five friends. Vishal is twice as old as priyatham. Raghu is half age of Priyatham. Vishal is half the age of Veeru and Raghu is twice the age of Karthik. Question:Who is the youngest ? 2981 05b5cc771e4d2b4197774ffee
5b5cc771e4d2b4197774ffee- 1Veerufalse
- 2Karthiktrue
- 3Vishalfalse
- 4Raghufalse
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Answer : 2. "Karthik"
Explanation :
Answer: B) Karthik Explanation: Let Priyatham's age = x Then, Vishal's age = 2x; Raghu's age = x/2; Veeru's age = 4x ; Karthik's age = x/4 So, the descending order of ages is : Veeru > Vishal > Priyatham > Raghu > Karthik Therefore, Karthik is the youngest.
Q: The difference of two numbers is 14. Their LCM and HCF are 441 and 7. Find the two numbers ? 2980 05b5cc709e4d2b4197774f267
5b5cc709e4d2b4197774f267- 163 and 49true
- 264 and 48false
- 362 and 46false
- 464 and 49false
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Answer : 1. "63 and 49"
Explanation :
Answer: A) 63 and 49 Explanation: Since their HCFs are 7, numbers are divisible by 7 and are of the form 7x and 7y Difference = 14 => 7x - 7y = 14=> x - y = 2 product of numbers = product of their hcf and lcm=> 7x * 7y = 441 * 7=> x * y = 63 Now, we havex * y = 63 , x - y = 2=> x = 9 , y = 7 The numbers are 7x and 7y=> 63 and 49