IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Points that lie on the same line are called 2332 0

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    Congruent
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    गलत
  • 2
    Coplanar points
    सही
    गलत
  • 3
    Collinear points
    सही
    गलत
  • 4
    None
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    गलत
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उत्तर : 3. "Collinear points"
व्याख्या :

Answer: C) Collinear points Explanation: Points that lie on the same line are called Collinear points. And that points lie on the same plane are called Coplanar points.

प्र: The average temperature for Monday, Tuesday, Wednesday and Thursday was 48 degrees and for Tuesday, Wednesday, Thursday and Friday was 46 degrees. If the temperature on Monday was 42 degrees. Find the temperature on Friday ? 2331 0

  • 1
    34
    सही
    गलत
  • 2
    36
    सही
    गलत
  • 3
    38
    सही
    गलत
  • 4
    40
    सही
    गलत
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उत्तर : 1. "34"
व्याख्या :

Answer: A) 34 Explanation: M + Tu + W + Th = 4 x 48 = 192Tu + W + Th + F = 4 x 46 = 184M = 42Tu + W + Th = 192 - 42 = 150F = 184 – 150 = 34

प्र: 5% of a number is 25% more than another number. The difference between the numbers is 96. Then find the value of the numbers? 2331 0

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    102 & 6
    सही
    गलत
  • 2
    99 & 3
    सही
    गलत
  • 3
    104 & 8
    सही
    गलत
  • 4
    100 & 4
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उत्तर : 4. "100 & 4"
व्याख्या :

Answer: D) 100 & 4 Explanation: Let the first number be x and the second number be y. Given 5% of x = (25% of y) + y => 5x/100 = 5y/4 => x = 25y ......(1) and also given that, x - y = 96 => x = 96 + y .....(2) From (1)&(2) 25y = 96 + y => 24y = 96 => y = 4 From (1) x = 96 + 4 = 100 Hence, the numbers are 100 & 4.

प्र: Velocitation is the tendency to 2330 0

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    be traveling at a speed that is faster than perceived
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  • 2
    be traveling at a speed that is slower than perceived
    सही
    गलत
  • 3
    Both A & B
    सही
    गलत
  • 4
    None of the above
    सही
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उत्तर : 1. "be traveling at a speed that is faster than perceived"
व्याख्या :

Answer: A) be traveling at a speed that is faster than perceived Explanation: Velocitation is a phenomenon caused by driving for long periods at high speeds. A driver may experience velocitation when coming off of the highway; the change in speed makes him or her think that the car is going much slower than it actually is.   Velocitation is the tendency to be traveling at a speed that is faster than perceived.

प्र: A box contains 90 screws each of 100 gms and 100 bolts each of 150 gms. If the entire box weighs 35.5 kg, then the weight of the empty box is ? 2330 0

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    10.5 kgs
    सही
    गलत
  • 2
    12 kgs
    सही
    गलत
  • 3
    9.6 kgs
    सही
    गलत
  • 4
    11.5 kgs
    सही
    गलत
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उत्तर : 4. "11.5 kgs"
व्याख्या :

Answer: D) 11.5 kgs Explanation: Screws weight = 90x100 = 9000gmsbolts weight = 100 x 150 = 15000gmsweight = screws + bolts => 24000 gms =>24 kgGiven entire box weight = 35.5kgempty box = entire box weight - weight => 35.5kg - 24kg => 11.5kgso the empty box is 11.5kg.

प्र: Who has the best overall health? 2330 0

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    a person who exercises regularly and is not overweight
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    a person who is not ill and is physically active
    सही
    गलत
  • 3
    a person who lives longer than his or her grandparents
    सही
    गलत
  • 4
    a person who balances social, physical, and mental health
    सही
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उत्तर : 4. "a person who balances social, physical, and mental health"
व्याख्या :

Answer: D) a person who balances social, physical, and mental health Explanation: A person who balances all the three healths such as Physical, mental and Social healths has the best overall health.

प्र: Which one of the following began with the Dandi March ? 2327 0

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    Civil disobedience Movement
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  • 2
    Quit India Movement
    सही
    गलत
  • 3
    Non-Cooperation Movement
    सही
    गलत
  • 4
    Home rule Movement
    सही
    गलत
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उत्तर : 1. "Civil disobedience Movement"
व्याख्या :

Answer: A) Civil disobedience Movement Explanation:

प्र: Which of the following is the lightest metal? 2324 0

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    Lithium
    सही
    गलत
  • 2
    Silver
    सही
    गलत
  • 3
    Mercury
    सही
    गलत
  • 4
    Lead
    सही
    गलत
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उत्तर : 1. "Lithium"
व्याख्या :

Answer: A) Lithium Explanation: Lithium is the lightest metal and the lightest solid element. It is a soft, silvery-white alkali metal. Under standard conditions. Like all alkali metals, lithium is highly reactive and flammable and is stored in mineral oil.

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