IIT JEE Practice Question and Answer

Q: A & B invest Rs. 1,16,000 & 1,44,000 respectively. B invests for 6 months. At the end of the year, B’s share is Rs. 9000, find the overall profit? 1591 0

  • 1
    Rs. 23,500
    Correct
    Wrong
  • 2
    Rs. 19,780
    Correct
    Wrong
  • 3
    Rs. 21,700
    Correct
    Wrong
  • 4
    Rs. 20,050
    Correct
    Wrong
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Answer : 1. "Rs. 23,500"
Explanation :

Answer: A) Rs. 23,500 Explanation: Given A & B in partnership A Invests 116000 for 12 months  => A's share = 116000 x 12 = 13,92,000 B Invests for 6 months => B's share = 144000 x 6 = 8,64,000 Their Ratio = 1392 : 864 = 29 : 18 Let the Annual profit = P Given B's share = Rs. 9000 => 18/47 x P = 9000 => P = 9000 x 47/18 => P = 23,500 Hence, Overall profit = P = Rs. 23,500

Q: If every seconds Saturday and all Sundays are holidays in a 30 days month beginning on Saturday, then how many working days are there in that month ? (Month starts from Saturday) 1591 0

  • 1
    25
    Correct
    Wrong
  • 2
    22
    Correct
    Wrong
  • 3
    24
    Correct
    Wrong
  • 4
    23
    Correct
    Wrong
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Answer : 4. "23"
Explanation :

Answer: D) 23 Explanation: As month begins on Saturday, so 2nd, 9th, 16th, 23rd, 30th days will be Sundays. While 8th and 22nd days are second Saturdays. Thus, there are 7 holidays in all. Hence, no. of working days = 30 – 7 =23

Q: Manideep purchases 30kg of barley at the rate of 11.50/kg and 20kg at the rate of 14.25/kg. He mixed the two and sold the mixture in the shop. At what price per kg should he sell the mixture to make 30% profit to him ? 1590 0

  • 1
    15.84
    Correct
    Wrong
  • 2
    14.92
    Correct
    Wrong
  • 3
    13.98
    Correct
    Wrong
  • 4
    16.38
    Correct
    Wrong
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Answer : 4. "16.38"
Explanation :

Answer: D) 16.38 Explanation: Given, Manideep purchases 30kg of barley at the rate of 11.50/kg nad 20kg at the rate of 14.25/kg. Total cost of the mixture of barley = (30 x 11.50) + (20 x 14.25) => Total cost of the mixture = Rs. 630 Total kgs of the mixture = 30 + 20 = 50kg Cost of mixture/kg = 630/50 = 12.6/kg To make 30% of profit => Selling price for manideep = 12.6 + 30% x 12.6 => Selling price for manideep = 12.6 + 3.78 = 16.38/kg.

Q: What is true about economic resources? 1590 0

  • 1
    Economic resources are limited.
    Correct
    Wrong
  • 2
    Economic resources are always controlled by the government.
    Correct
    Wrong
  • 3
    Economic resources include only money.
    Correct
    Wrong
  • 4
    Economic resources exist only at the individual level.
    Correct
    Wrong
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Answer : 1. "Economic resources are limited."
Explanation :

Answer: A) Economic resources are limited. Explanation: Economic resources are those goods and services that can be converted into valuable products for individual and business purposes. There are four major types of economic resources: 1. land, 2. labor, 3. capital and 4. entrepreneurship.   Land and labor are natural and human resources, while capital means physical resources or money. Entrepreneurship converts these resources into usable goods.   However, resources have finite values, and proper utilization depends on economic systems and economic decisions.

Q: Which of the following languages is a Slavic Language? 1590 0

  • 1
    Polish
    Correct
    Wrong
  • 2
    Flemish
    Correct
    Wrong
  • 3
    Romanian
    Correct
    Wrong
  • 4
    Gaelic
    Correct
    Wrong
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Answer : 1. "Polish"
Explanation :

Answer: A) Polish Explanation: Slavic languages, also called Slavonic languages, a subfamily of the Indo-European family of languages Eastern European ethnic group, commonly associated with Russia, the Baltic States, and other Eastern European countries. peoples of the lands of today's Eastern Europe and Russia have excited curiosity and beckoned visitors. Key to these peoples and cultures are the Slavic languages: 1. Russian, 2. Ukrainian, 3. Polish, 4. Czech, and 5. Bosnian/Croatian/Serbian.   Flemish is the language of many Belgians. Romanians are more Hungarian or Balkans-affiliated than Russian. Gaelic is the language of the Celts (Scotland/Ireland).

Q: Finger like ends of the fallopian tubes are called 1590 0

  • 1
    Fimbriae
    Correct
    Wrong
  • 2
    Cysts
    Correct
    Wrong
  • 3
    Papillae
    Correct
    Wrong
  • 4
    Labia
    Correct
    Wrong
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Answer : 1. "Fimbriae"
Explanation :

Answer: A) Fimbriae Explanation: The fimbriae of the uterine tube, also known as fimbriae tubae, are small, fingerlike projections at the end of the fallopian tubes, through which eggs move from the ovaries to the uterus. The fimbriae are connected to the ovary.

Q: A sum is equally invested in two different schemes on CI at the rate of 15% and 20% for two years. If interest gained from the sum invested at 20% is Rs. 528.75 more than the sum invested at 15%, find the total sum? 1590 0

  • 1
    Rs. 7000
    Correct
    Wrong
  • 2
    Rs. 4500
    Correct
    Wrong
  • 3
    Rs. 9000
    Correct
    Wrong
  • 4
    Rs. 8200
    Correct
    Wrong
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Answer : 3. "Rs. 9000"
Explanation :

Answer: C) Rs. 9000 Explanation: Let Rs. K invested in each scheme Two years C.I on 20% = 20 + 20 + 20x20/100 = 44% Two years C.I on 15% = 15 + 15 + 15x15/100 = 32.25% Now, (P x 44/100) - (P x 32.25/100) = 528.75 => 11.75 P = 52875 => P = Rs. 4500   Hence, total invested money = P + P = 4500 + 4500 = Rs. 9000.

Q: Second and third class levers are differentiated by 1589 0

  • 1
    the location of the load
    Correct
    Wrong
  • 2
    the location of the fulcrum
    Correct
    Wrong
  • 3
    the presence of multiple loads
    Correct
    Wrong
  • 4
    the type of fulcrum present
    Correct
    Wrong
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Answer : 1. "the location of the load"
Explanation :

Answer: A) the location of the load Explanation:

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