CAT Practice Question and Answer
8Q: What important polymer is located in the nucleus? 1909 05b5cc611e4d2b4197774b650
5b5cc611e4d2b4197774b650- 1Ribosomesfalse
- 2Chromosomesfalse
- 3DNAtrue
- 4Proteinsfalse
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Answer : 3. "DNA"
Explanation :
Answer: C) DNA Explanation: The most important polymer present in the nucleus is DNA- the master molecule. It is a polymer of Nucleotides.
Q: 14 persons are seated around a circular table. Find the probability that 3 particular persons always seated together. 1907 05b5cc6b6e4d2b4197774d5b8
5b5cc6b6e4d2b4197774d5b8- 111/379false
- 221/628false
- 324/625true
- 426/247false
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Answer : 3. "24/625"
Explanation :
Answer: C) 24/625 Explanation: Total no of ways = (14 – 1)! = 13! Number of favorable ways = (12 – 1)! = 11! So, required probability = 11!×3!13! = 39916800×66227020800 = 24625
Q: If a student walks at the rate of 4 mts/min from his home, he is 4 minutes late for school, if he walks at the rate of 6 mts/min he reaches half an hour earlier. How far is his school from his home ? 1905 05b5cc764e4d2b4197774fd80
5b5cc764e4d2b4197774fd80- 1100 mtsfalse
- 296 mtsfalse
- 398 mtstrue
- 4120 mtsfalse
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Answer : 3. "98 mts"
Explanation :
Answer: C) 98 mts Explanation: Let the distance between home and school is 'x'.Let actual time to reach be 't'.Thus, x/4 = t + 4 ---- (1)and x/6 = t - 30 -----(2)Solving equation (1) and (2)=> x = 98 mts.
Q: Most commonly used bleaching agent is 1905 05b5cc6a2e4d2b4197774cb17
5b5cc6a2e4d2b4197774cb17- 1Chlorinetrue
- 2Alcoholfalse
- 3Carbon dioxidefalse
- 4Sodium Chloridefalse
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Answer : 1. "Chlorine"
Explanation :
Answer: A) Chlorine Explanation: Chlorine is the most commonly used bleaching agent. Bleaching agents are compounds which are used to remove color from substances such as textiles. A bleaching agent is a material that lightens or whitens a substrate through the chemical reaction. The bleaching reactions usually involve oxidative or reductive processes that degrade color systems.
Q: When the price of whear was increased by 32%, a family reduced its consumption in such a way that the expenditure on wheat was only 10% more than before. If 30 kg per month were consumed before, find the new monthly consumption of family? 1904 05b5cc61ee4d2b4197774b758
5b5cc61ee4d2b4197774b758- 127 kgsfalse
- 225 kgstrue
- 324 kgsfalse
- 421 kgsfalse
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Answer : 2. "25 kgs"
Explanation :
Answer: B) 25 kgs Explanation: Initial wheat per kg cost be Rs. 100 Then, monthly expenditure of the family = 30 x 100 = 3000 After increase in cost, Let P be new monthly consumption of family. P x 132 = 110/100 x 3000 => P = 25 kg.
Q: How many seconds in 10 years? 1904 05b5cc695e4d2b4197774c534
5b5cc695e4d2b4197774c534- 131523500 secfalse
- 2315360000 sectrue
- 3315423000 secfalse
- 4315354000 secfalse
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Answer : 2. "315360000 sec"
Explanation :
Answer: B) 315360000 sec Explanation: We know that, 1 year = 365 days 1 day = 24 hours 1 hour = 60 minutes 1 minute = 60 seconds. Then, 1 year = 365 x 24 x 60 x 60 seconds. = 8760 x 3600 1 year = 31536000 seconds. Hence, 10 years = 31536000 x 10 = 315360000 seconds.
Q: Find the number which multiplied by 15 is increased by 56 ? 1904 05b5cc6e2e4d2b4197774ec43
5b5cc6e2e4d2b4197774ec43- 16false
- 24true
- 33false
- 412false
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Answer : 2. "4"
Explanation :
Answer: B) 4 Explanation: Let the number be x. Then, 15x - x = 56 x = 4
Q: Who wanted economic freedom with political freedom? 1904 05b5cc66de4d2b4197774bfe9
5b5cc66de4d2b4197774bfe9- 1Swami Sahajanand Saraswatitrue
- 2Swami Vivekanandfalse
- 3Swami Ramanandfalse
- 4Swami Dayanand saraswatifalse
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Answer : 1. "Swami Sahajanand Saraswati"
Explanation :
Answer: A) Swami Sahajanand Saraswati Explanation: