IIT JEE Practice Question and Answer

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Answer : 4. "20 years"
Explanation :

Answer: D) 20 years Explanation: Present total age of the members = 26(5) = 130 years.   Present age of the youngest member = 10 years   Present total age of the remaining four members = 130 -10 = 120 years   Their average age at the time of the birth of the youngest member = 120-4×104 = 30 - 10 = 20 years.

Q: In a mens hostel, there were 95 students. To accommodate 30 more students the average is decreased by rupees 5. But total expenditure increased by Rs.500. Find the total expenditure of the hostel now ? 4292 0

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    Rs. 4680
    Correct
    Wrong
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    Rs. 4420
    Correct
    Wrong
  • 3
    Rs. 4960
    Correct
    Wrong
  • 4
    Rs. 5480
    Correct
    Wrong
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Answer : 1. "Rs. 4680"
Explanation :

Answer: A) Rs. 4680 Explanation: Let the expenditure on the 95 students be 'x' Then, 95x + 500 = 120(x – 5)95x + 500 = 120x - 600120x - 95x = 110025x = 1100=> x = 44 Therefore, total expenditure of the hostel becomes95 x 44 + 500 = 4680.

Q: माइक्रोप्रोसेसर उद्योग में कौन सी कंपनी सबसे बड़ी खिलाड़ी है? 4283 4

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    AMD
    Correct
    Wrong
  • 2
    IBM
    Correct
    Wrong
  • 3
    Motorola
    Correct
    Wrong
  • 4
    Intel
    Correct
    Wrong
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Answer : 4. "Intel"
Explanation :

Answer: D) Intel Explanation:

Q: In a certain code language, 'how can you go' is written as 'ja da ka pa', 'can you come here' is written as 'na ka sa ja' and 'cone and go' is written as 'ra pa sa'. How is 'here' written in that code ? 4279 0

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    na
    Correct
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    ja
    Correct
    Wrong
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    sa
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "na"
Explanation :

Answer: A) na Explanation: From the given information : how can you go = ja da ka pa....(1)can you come here = na ka sa ja...(2)come and go = ra pa sa....(3)from (1)&(2), can you = ja ka...(4)from (2)&(3), come = sa...(5)Using (4)&(5) in (2), we get here = na.

Q: Smallest gulf in the world is 4269 0

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    Gulf of Mexico
    Correct
    Wrong
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    Persian Gulf
    Correct
    Wrong
  • 3
    Gulf of Oman
    Correct
    Wrong
  • 4
    Gulf of California
    Correct
    Wrong
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Answer : 4. "Gulf of California"
Explanation :

Answer: D) Gulf of California Explanation: A gulf in geography is a large bay that is an arm of an ocean or sea.   The second smallest sea on Earth is the Sea of Cortez, more commonly called the Gulf of California. This sea is about 62,000 square miles. It lies between Mexico and the Baja California Peninsula.

Q: By selling an article at Rs.800, a shopkeeper makes a profit of 25%.At what price should he sell the article so as to make a loss of 25%? 4267 0

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    Rs.720
    Correct
    Wrong
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    Rs.640
    Correct
    Wrong
  • 3
    Rs.540
    Correct
    Wrong
  • 4
    Rs.480
    Correct
    Wrong
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Answer : 4. "Rs.480"
Explanation :

Answer: D) Rs.480 Explanation: SP = Rs.800 ; Profit = 25%  CP = SP x 100100+P% = 800 x 100100+25 = 640    Now, CP = Rs.640   Loss = 25% = 25% of Rs.640 = Rs.160   Thus, SP = CP - Loss = Rs.640 - Rs.160 = Rs.480

Q: Which of the Phrases(1), (2), (3) and (4) given below each sentence should replace the phrases printed in bold in the sentence to make it grammatically correct. The ban is applied by the district’s commercial taxes department after protests by a community, which had threat to burn theatres screening the controversial movie. 4261 0

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    had threated to burn
    Correct
    Wrong
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    had threatened to burn
    Correct
    Wrong
  • 3
    had threatened to burning
    Correct
    Wrong
  • 4
    had threats of burning
    Correct
    Wrong
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Answer : 2. "had threatened to burn"
Explanation :

Answer: B) had threatened to burn Explanation:

Q: What was the day on 2nd Jan 1901 ? 4247 0

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    Tuesday
    Correct
    Wrong
  • 2
    Wednesday
    Correct
    Wrong
  • 3
    Monday
    Correct
    Wrong
  • 4
    Thursday
    Correct
    Wrong
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Answer : 2. "Wednesday"
Explanation :

Answer: B) Wednesday Explanation: 2nd Jan 1901 means(1900 years and 2 day)Now, 1600 years have 0 odd day300 years have 1 odd day2 days has 2 odd dayTotal no. of odd days = 0 + 1 + 2 = 3 daysHence, the day on 2nd Jan 1901 was Wednesday.

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