IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Find the value of 1.21x0.91.1x0.11? 1286 0

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    0
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    1
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    3
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    5
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उत्तर : 3. "3"
व्याख्या :

Answer: C) 3 Explanation: Given   1.21x0.91.1x0.11   = 1.21x100x0.9x101.1x10x0.11x100   = 9   = 3.

प्र: The 'IFSC Code' is an alphanumeric code comprising 11 characters that facilitates Electronic Fund Transfer in the country. The alphabet 'F' in the abbreviation 'IFSC' stands for ? 1286 0

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    Fund
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    Fast
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    Financial
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    First
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उत्तर : 3. "Financial"
व्याख्या :

Answer: C) Financial Explanation: IFSC stands for - Indian Financial System Code. This is a code uniquely identifies each bank branch participating in the two main Payment and settlement systems in India : 1. RTGS - The Real Time Gross Settlement  (and) 2. NEFT - The National Electronic Fund Transfer (NEFT) systems.

प्र: A mother can do a certain job in x hours. Her daughter takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does the mother take to do the job ? 1285 0

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    3
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    6
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    9
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    12
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उत्तर : 3. "9"
व्याख्या :

Answer: C) 9 Explanation: The mother completes the job in x hours.So, the daughter will take 2x hours to complete the same job.   In an hour, the mother will complete 1/x of the total job.In an hour, the daughter will complete 1/2x of the total job.   So, if the mother and daughter work together, in an hour they will complete 1/x + 1/2x of the job.i.e., in an hour they will complete 3/2x of the job.   The question states that they complete the entire task in 6 hours if they work together.i.e., they complete 1/6 th of the task in an hour.   Equating the two information, we get 3/2x = 1/6By solving for x, we get 2x = 18 or x = 9.   The mother takes 9 hours to complete the job.

प्र: 'International Plastic Bag Free Day' is observed on which date ? 1285 0

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    3 July
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    4 July
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    6 July
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    5 July
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उत्तर : 1. "3 July"
व्याख्या :

Answer: A) 3 July Explanation: International Plastic Bag Free Day was observed on 3rd of July 2017. It has been dedicated to heightening awareness about plastic and disposable carrying devices. International Plastic Bag Free Day gives us an opportunity to remind ourselves, and others, that every action we take, and every bag we dispose of effects the lives of everyone in the world for generations to come.

प्र: Which is in India wins Pierre L'Enfant International Planning Excellence Award 2017 ? 1283 0

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    Banglore
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    Hyderabad
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    Bhubaneshwar
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    Delhi
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उत्तर : 3. "Bhubaneshwar"
व्याख्या :

Answer: C) Bhubaneshwar Explanation: The American Planning Association (APA) has announced this year's international excellence award for the Bhubaneswar smart city project. The award called Pierre L'Enfant International Planning Excellence Award 2017 will be given on May 8 in New York city. This is the first time in the 50 years history of APA's annual award programme that an Indian city has been recognised for its planning efforts.

प्र: Long Sightedness means 1283 0

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    near images are blurry
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    far images are blurry
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    Both A & B
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    None of the above
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उत्तर : 1. "near images are blurry"
व्याख्या :

Answer: A) near images are blurry Explanation: Long sightedness is a common vision condition in which nearby objects are blurry.   In this situation, the person with this condition of the eye where the curvature of the cornea is flat or the axial length of the eyeball is short. When light enters the eye, it does not focus directly on the retina, but focuses beyond the retina. This causes near images to appear out of focus and blurred.     Long sightedness is also called hyperopia, and sometimes presbyopia.

प्र: The edge of three cubes of metal is 3 m, 4 m and 5 m. They are melted and formed into a single cube. Find the edge of the new cube  ? 1282 0

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    15 m
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    4 m
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    6 m
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    9 m
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उत्तर : 3. "6 m"
व्याख्या :

Answer: C) 6 m Explanation: The edge of the new cube is = 33+43+53 = a3 => a = 6 m.

प्र: Pharaohs : Egypt 1280 0

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उत्तर :
व्याख्या :

Pharaoh is the common title of the monarchs of ancient Egypt.   The Pharaoh in ancient Egypt was the political and religious leader of the people and held the titles 'Lord of the Two Lands' and 'High Priest of Every Temple'.

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