IIT JEE Practice Question and Answer
8Q: The ratio of efficiencies of P, Q and R is 2 : 3 : 4. While P and R work on alternate days and Q work for all days. Now the work completed in total 10 days and the total amount they get is Rs. 1200. Find the amount of each person(respectively). 2350 05b5cc69de4d2b4197774c914
5b5cc69de4d2b4197774c914- 1200, 600, 400true
- 2400, 600, 200false
- 3600, 200, 400false
- 4400, 200, 600false
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Answer : 1. "200, 600, 400"
Explanation :
Answer: A) 200, 600, 400 Explanation: Ratio of efficiencies of P, Q and R = 2 : 3 : 4 From the given data, Number of working days of P, Q, R = 5 : 10 : 5 Hence, ratio of amount of p, Q, R = 2x5 : 3x10 : 4x5 = 10 : 30 : 20 Amounts of P, Q, R = 200, 600 and 400.
Q: Oar is to rowboat as foot is to 2350 05b5cc672e4d2b4197774c07d
5b5cc672e4d2b4197774c07d- 1Walkfalse
- 2Loafersfalse
- 3Skateboardtrue
- 4Runningfalse
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Answer : 3. "Skateboard"
Explanation :
Answer: C) Skateboard Explanation: A rowboat can be put into motion by using oar. Similaarly, a skateboard can be put into motion by using foot. The other options like walk and running are not objects to be in motion. And loafers are something worn on foot. Hence, Oar : Rowboat :: Foot : Skateboard.
Q: P, Q and R secured 45%, 50% and 60% marks respectively in Biology. M’s marks in Biology is 12.5 more than P’s marks and 4 less than R’s marks. Find out the individual marks of four students. A. For the students, total marks obtained for Biology is 311.5.B. Total of M’s and P’s marks in Biology is 147.5.C. R has obtained 84 marks. 2349 05b5cc69fe4d2b4197774c9ec
5b5cc69fe4d2b4197774c9ec- 1Only Cfalse
- 2Only A & Bfalse
- 3All are requiredfalse
- 4None of the statements is requiredtrue
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Answer : 4. "None of the statements is required"
Explanation :
Answer: D) None of the statements is required Explanation: From the given data, (60 - 45)% = 12.5 + 415% = 16.5=> 100% = ?100% = 16.5 x 100/15 = 110 Hence, P = 45% of 110 = 45x110/100 = 49.5 Q = 50% of 110 = 55R = 60% of 110 = 60 x 110/100 = 66M = 12.5 + 49.5 = 62 or 66 - 4 = 62 Hence, no statement is required to answer.
Q: 2.5, 3.5, 9, 40, ? Find the next number in the above-given series? 2349 05b5cc6bae4d2b4197774d7df
5b5cc6bae4d2b4197774d7df- 1316false
- 2328true
- 3323false
- 4340false
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Answer : 2. "328"
Explanation :
Answer: B) 328 Explanation: 2.5 × 1 + 1 = 3.5 3.5 × 2 + 2 = 9 9 × 4 + 4 = 40 40 × 8 + 8 = 328
Q: The sum of three consecutive odd numbers is 93. What is the middle number? 2348 05b5cc6b7e4d2b4197774d5e7
5b5cc6b7e4d2b4197774d5e7- 131true
- 233false
- 329false
- 427false
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Answer : 1. "31"
Explanation :
Answer: A) 31 Explanation: Let the three consecutive odd numbers be x, x+2, x+4 Then, x + x + 2 + x + 4 = 93 => 3x + 6 = 93 => 3x = 87 => x = 29 => 29, 31, 33 are three consecutive odd numbers. Therefore, the middle number is 31.
Q: kuchipudi belongs to which state 2348 05b5cc699e4d2b4197774c6d2
5b5cc699e4d2b4197774c6d2- 1Telanganafalse
- 2Tamilnadufalse
- 3Andhra Pradeshtrue
- 4Keralafalse
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Answer : 3. "Andhra Pradesh"
Explanation :
Answer: C) Andhra Pradesh Explanation: Kuchipudi is a dance-drama performance, with its roots in the ancient Hindu Sanskrit text of Natya Shastra. It originated in a village named Kuchipudi in the Indian state of Andhra Pradesh. Kuchipudi is also known as Kuchelapuram or Kuchilapuri in Krishna district of Andhra Pradesh.
Q: Plants that grow in Saline Water are called 2347 15b5cc6b3e4d2b4197774d477
5b5cc6b3e4d2b4197774d477- 1Sciophytesfalse
- 2Bryophytesfalse
- 3Halophytestrue
- 4Hydrophytesfalse
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Answer : 3. "Halophytes"
Explanation :
Answer: C) Halophytes Explanation: Plants that grow in Saline Water are called Halophytes.
Q: Where is it legal to tie up your boat? 2347 05b5cc607e4d2b4197774b549
5b5cc607e4d2b4197774b549- 1to a lighted buoyfalse
- 2to a mooring buoytrue
- 3to a non-lateral markerfalse
- 4to a safe water markerfalse
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Answer : 2. "to a mooring buoy"
Explanation :
Answer: B) to a mooring buoy Explanation: Mooring buoy are white with a blue horizontal band. They usually are placed in marinas and other areas where boats are allowed to anchor. These are the only buoys you may tie up to legally.

