CAT Practice Question and Answer
8Q: 12 students of class IX took part in GK quiz. If the number of boys is 4 more than the number of girls. Find the number of boys and girls took part in the quiz ? 1891 05b5cc6bfe4d2b4197774da79
5b5cc6bfe4d2b4197774da79- 17, 5false
- 29, 3false
- 38, 4true
- 46, 6false
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Answer : 3. "8, 4"
Explanation :
Answer: C) 8, 4 Explanation: Let the number of girls = x => x + x + 4 = 12 => 2x = 8 => x = 4 => Number of girls = 4 => Number of boys = 4 + 4 = 8
Q: A can do a piece of work in 30 days. He works at it for 6 days and then B finishes it in 18 days. In what time can A and B together it ? 1891 05b5cc6d8e4d2b4197774e755
5b5cc6d8e4d2b4197774e755- 114 1/2 daysfalse
- 211 daysfalse
- 313 1/4 daysfalse
- 412 6/7 daystrue
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Answer : 4. "12 6/7 days"
Explanation :
Answer: D) 12 6/7 days Explanation: Let 'B' alone can do the work in 'x' days 6/30 + 18/x = 1 => x = 22.5 1/30 + 1/22.5 = 7/90 => 90/7 = 12 6/7 days
Q: Three unbiased coins are tossed. What is the probability of getting at most two heads ? 1890 05b5cc764e4d2b4197774fd76
5b5cc764e4d2b4197774fd76- 14/3false
- 22/3false
- 33/2false
- 43/4true
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Answer : 4. "3/4"
Explanation :
Answer: D) 3/4 Explanation: Let S be the sample space.Here n(S)= 23 = 8Let E be the event of getting atmost two heads. Then,n(E) = {(H,T,T), (T,H,T), (T,T,H), (H,H,T), (T,H,H), (H,T,H)}Required probability = n(E)/n(S) = 6/8 = 3/4.
Q: Which of the following river empties into the Arabian Sea? 1890 05b5cc6b8e4d2b4197774d65a
5b5cc6b8e4d2b4197774d65a- 1Gangafalse
- 2Yamunafalse
- 3Industrue
- 4Kaverifalse
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Answer : 3. "Indus"
Explanation :
Answer: C) Indus Explanation: The river which starts flowing from Himalayas on the North to southwards to empty in the Arabian sea is Indus River.
Q: Lime is sometimes applied to soil in order to 1890 05b5cc698e4d2b4197774c652
5b5cc698e4d2b4197774c652- 1increase the acidity of the soilfalse
- 2make the soil more porousfalse
- 3restore nitrates to the soilfalse
- 4increase the alkalinity of the soiltrue
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Answer : 4. "increase the alkalinity of the soil"
Explanation :
Answer: D) increase the alkalinity of the soil Explanation: Lime is sometimes applied to soil in order to increase the acidity of the soil.
Q: DNA is made of repeating units called 1890 05b5cc666e4d2b4197774bed5
5b5cc666e4d2b4197774bed5- 1Nucleotidestrue
- 2Ribozomesfalse
- 3Peptidesfalse
- 4Aminoacidsfalse
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Answer : 1. "Nucleotides"
Explanation :
Answer: A) Nucleotides Explanation: DNA is a very long chain polymer made up of thousands of repeating units called nucleotides. Nucleotide Unit is composed of a phosphate group, a pentose sugar, and a nitrogenous base. The sides of the DNA ladder are made up of alternating deoxyribose sugar -- phosphate group units.
Q: Nepal Government announces public holidays during Nepalese President's visit to _____ 1889 05b5cc6eee4d2b4197774eefa
5b5cc6eee4d2b4197774eefa- 1Indiatrue
- 2Chinafalse
- 3Japanfalse
- 4Russiafalse
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Answer : 1. "India"
Explanation :
Answer: A) India Explanation: Nepalese President Bidya Devi Bhandari is arriving in New Delhi on a five-day visit to India. This will be Bhandari's first foreign trip after assuming the office in October 2015, following the promulgation of the new Constitution in Nepal.
Q: Choose the word which gives similar meaning to the given word from the following options. 'Autopsy' 1889 05b5cc75ee4d2b4197774fcfd
5b5cc75ee4d2b4197774fcfd- 1Diagnosisfalse
- 2Rebuildfalse
- 3Manufacturefalse
- 4Postmortemtrue
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Answer : 4. "Postmortem"
Explanation :
Answer: D) Postmortem Explanation: Autopsy is the medical term for postmortem.