CAT Practice Question and Answer

Q: There is sufficient salary to give K for 10 days and L for 15 days. Then how many days will the money last if both has to be given the salary ? 1921 0

  • 1
    6 days
    Correct
    Wrong
  • 2
    12 days
    Correct
    Wrong
  • 3
    4 days
    Correct
    Wrong
  • 4
    9 days
    Correct
    Wrong
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Answer : 1. "6 days"
Explanation :

Answer: A) 6 days Explanation: K's 1 day's salary = 1/10 L's 1 day's salary = 1/15 Together their 1 day's salary = 1/10 + 1/15 = 3/30 + 2/30 = 5/30 = 1/6 So the money will be enough for paying them both for 6 days.

Q: Who was the first englishman to sail around the world? 1921 0

  • 1
    Magellan
    Correct
    Wrong
  • 2
    Sir Francis Drake
    Correct
    Wrong
  • 3
    Juan Sebastian Elcano
    Correct
    Wrong
  • 4
    Henry Hudson
    Correct
    Wrong
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Answer : 2. "Sir Francis Drake"
Explanation :

Answer: B) Sir Francis Drake Explanation: Sir Francis Drake was the first Englishman to sail around the world.

Q: Kalyan purchased a Maruti van for Rs. 1,96,000 and the rate of depreciation is 14(2/7) % per annum. Find the value of the van after two years ? 1920 0

  • 1
    Rs. 1,24,000
    Correct
    Wrong
  • 2
    Rs. 1,44,000
    Correct
    Wrong
  • 3
    Rs. 1,32,000
    Correct
    Wrong
  • 4
    Rs. 1,62,000
    Correct
    Wrong
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Answer : 2. "Rs. 1,44,000"
Explanation :

Answer: B) Rs. 1,44,000 Explanation: Value of Maruti Van, V1 = Rs. 1,96,000Rate of depreciation, r = 14(2/7)% = 100/7%; Time, t = 2 yearsLet V2 is the value after depreciation. V2 = V11 - r100tV2 = 196001 - 10071002 V2 = 196000(6/7)(6/7) V2 = (196000x36)/49 = Rs. 1,44,000.

Q: 20 men went to a restaurant. Ninteen of them paid Rs.70 each and the twentieth man paid Rs.90.25 more than the average of all the 20 men. What is the total bill ? 1920 0

  • 1
    Rs. 1495
    Correct
    Wrong
  • 2
    Rs. 548
    Correct
    Wrong
  • 3
    Rs. 850
    Correct
    Wrong
  • 4
    Rs. 1750
    Correct
    Wrong
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Answer : 1. "Rs. 1495"
Explanation :

Answer: A) Rs. 1495 Explanation: Let the average bill paid by twenty members = 'x' But 19 men paid each = Rs. 70 20th man paid Rs. 90.25 more than the avg bill of 20 = x + 90.25 20x = 19(70) + x + 90.2519x = 1330 + 90.2519x = 1420.25x = 1420.25/19 = Rs. 74.75 But the total bill = 20 x 74.75 = Rs. 1495.

Q: The part of earth where life exists 1920 0

  • 1
    Biosphere
    Correct
    Wrong
  • 2
    Atmosphere
    Correct
    Wrong
  • 3
    Lithosphere
    Correct
    Wrong
  • 4
    Hydrosphere
    Correct
    Wrong
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Answer : 1. "Biosphere"
Explanation :

Answer: A) Biosphere Explanation: The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life is called Biosphere.

Q: RADAR is used for 1920 0

  • 1
    detecting and locating the position of objects such as Aeroplanes
    Correct
    Wrong
  • 2
    locating submerged submarines
    Correct
    Wrong
  • 3
    locating geostationary satellites
    Correct
    Wrong
  • 4
    receiving a signals in a radio receiver
    Correct
    Wrong
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Answer : 1. "detecting and locating the position of objects such as Aeroplanes"
Explanation :

Answer: A) detecting and locating the position of objects such as Aeroplanes Explanation: RADAR - RAdio Detection And Ranging. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects.    Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.   Radio waves from the transmitter reflect off the object and return to the receiver, giving information about the object's location and speed.

Q: In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ? 1919 0

  • 1
    625
    Correct
    Wrong
  • 2
    525
    Correct
    Wrong
  • 3
    425
    Correct
    Wrong
  • 4
    325
    Correct
    Wrong
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Answer : 2. "525"
Explanation :

Answer: B) 525 Explanation: Given 40% minimum passing marks for boys = 483 + 117 = 600=> 1% = 600/40 => 100% = 600 x 100/40 = 1500Minimum passing marks for girls = 35% of 1500 = 35 x 1500/100 = 525.

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