IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: A Woman’s downstream swimming rate is thrice of her upstream swimming rate. If she covers 12 km upstream in 2.5 hours, what distance she will cover in 5 hours downstream? 3019 0

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    72 km
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    36 km
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    56 km
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    42 km
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उत्तर : 1. "72 km"
व्याख्या :

Answer: A) 72 km Explanation: Rate of her upstream = 12/2.5 = 4.8 km/hr Then, ATQ Rate of downstream = 4.8 x 3 = 14.4 km/hr   Hence, the distance she covers downstream in 5 hrs = 14.4 x 5 = 72 kms.

प्र: What has a foot but no legs? 1759 0

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उत्तर :
व्याख्या :

A measuring device.   Measuring devices have feet on them to measure distance.

प्र: The ratio of K’s and M’s ages is 4: 5. If the difference between the present age of M and the age of K, 5 years hence is 3 years, then what is the difference and total of present ages of K and M? 1559 0

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    8, 72 yrs
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    16, 65 yrs
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    12, 84 yrs
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    10, 60 yrs
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उत्तर : 1. "8, 72 yrs"
व्याख्या :

Answer: A) 8, 72 yrs Explanation: Let the present ages be K,M Given K/M = 4/5 5K - 4M = 0 ......(1) Also given that, M - (K + 5) = 3 M - K = 8 .........(2) Then, by solving (1) & (2) M = 40 yrs and K = 32 yrs Hence, Total of ages = 40 + 32 = 72 yrs Difference of ages = 40 - 32 = 8 yrs.

प्र: What place is designated as 0 degrees longitude? 1294 0

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    Greenwich
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    Prime meridian
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    Tibet
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    Norway
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उत्तर : 1. "Greenwich"
व्याख्या :

Answer: A) Greenwich Explanation: The place which is designated as 0 degrees longitude is Greenwich, England.

प्र: Why are you the best candidate for this position? 1221 0

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उत्तर :
व्याख्या :

I am a fast learner, as I had to learn a totally new operating system in my last job and I was up and running within a couple of weeks.   As you require someone who can perform wide range of administrative work, I have a track record of carrying different tasks efficiently and effectively.   I have the right combination of skills and experiance for this job. I also bring the additional quality of strong analytical and problem solving ability as shown by my introduction of a more efficient work flow system at some company.

प्र: Name the U.S. war between the north and the south? 925 0

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    American Civil War
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    Colonial wars
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    War of Independence
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    Post-Civil War
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उत्तर : 1. "American Civil War"
व्याख्या :

Answer: A) American Civil War Explanation: The American Civil War has been known by a number of names since it began in 1861.   In most East Asian languages, the war is called "Battle between North and South side of the United States" or more commonly as "American (U.S.) North–South War", depending on the individual language.

प्र: Which statement about greek sculpture is false? 2972 0

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    The Greeks admired the strength and precision of athletes and wanted to portray athletic figures.
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    The three main principles of Greek aesthetics are proportion, movement, and rhythm.
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    Greeks sculptures are typically stiffly posed, highly styled figures.
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    All the above
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उत्तर : 3. "Greeks sculptures are typically stiffly posed, highly styled figures."
व्याख्या :

Answer: C) Greeks sculptures are typically stiffly posed, highly styled figures. Explanation: Greek Sculpture are typically stiff, posed & highly styled figures is the false answer.

प्र: Where does translation occur? 1415 0

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    Nucleus
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    Ribosomes
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    Cytoplasm
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    mitochondrion
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उत्तर : 3. "Cytoplasm"
व्याख्या :

Answer: C) Cytoplasm Explanation: Right after that, the mRNA enters the cytoplasm through nuclear pores. There, it could be translated into proteins by ribosomes. This process is called translation.   Translation occurs in the cytoplasm whereas transcription occurs in the nucleus.

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