IIT JEE Practice Question and Answer
8Q: 5 C in an OF? 2258 05b5cc6aee4d2b4197774d18d
5b5cc6aee4d2b4197774d18d- 15 Cards in an Old Fanfalse
- 25 Circles in an Olympic Flagtrue
- 35 Colors in an Old Footballfalse
- 45 Colors in an Old Flagfalse
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Answer : 2. "5 Circles in an Olympic Flag"
Explanation :
Answer: B) 5 Circles in an Olympic Flag Explanation: 5 C in an OF denotes 5 Circles in an Olympic Flag. These are riddles of type 12 S of the Z 52 W in a Y.
Q: Each of the following series of statements is followed by four sets. Identify the set that is logically consistent.(a) The gap between the average starting salaries of teachers and those of other professionals has shrunk in recent years.(b) The average age of first year teachers is same as it was in 1975.(c) Starting teachers are no longer underpaid.(d) The extent of a persons formal education is a measure by which to determine his level of salary.(e) Over the last few years, the average starting salaries of other professionals have increased by 20% 2258 05b5cc731e4d2b4197774f7b0
5b5cc731e4d2b4197774f7b0- 1e,b,dfalse
- 2e,d,bfalse
- 3a,c,bfalse
- 4a,e,ctrue
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Answer : 4. "a,e,c"
Explanation :
Answer: D) a,e,c Explanation: The statements a,e,c are logically sequenced.
Q: The sum of three consecutive odd numbers is 93. What is the middle number? 2257 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: If Rs. 782 be divided into three parts, proportional to 1/2:2/3:3/4, then the first part is: 2256 05b5cc6e7e4d2b4197774ed7e
5b5cc6e7e4d2b4197774ed7e- 1Rs. 408false
- 2Rs. 204true
- 3Rs. 412false
- 4Rs. 220false
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Answer : 2. "Rs. 204"
Explanation :
Answer: B) Rs. 204 Explanation: Given ratio = 1/2:2/3:3/4 = 6:8:9 1st part = 782 x 6/23 = Rs. 204.
Q: Plants that grow in Saline Water are called 2255 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: 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. 2254 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: CK169JROS2419TXKM??PV 2251 05b5cc7b9e4d2b4197775097d
5b5cc7b9e4d2b4197775097d- 114,21false
- 221,14true
- 356,84false
- 484,56false
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Answer : 2. "21,14"
Explanation :
Answer: B) 21,14 Explanation: Putting A=1, B=2, C=3,..., M=13,....,X=24,Y=25, Z=26, we have : JR = J + R2 + 2 = 10 + 18 2 + 2 = 16 CK = C + K2 + 2 = 3 + 112 + 2 = 9 TX = T + X2+ 2 = 20 + 242 + 2 = 24 OS = O + S2 + 2 = 15 + 192 + 2 = 19 So, the missing numbers are : 21 and 14 Hence, the answer is (b).
Q: The largest 4 digit number exactly divisible by 88 is ? 2251 05b5cc728e4d2b4197774f6d2
5b5cc728e4d2b4197774f6d2- 19944true
- 29768false
- 38888false
- 49988false
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Answer : 1. "9944"
Explanation :
Answer: A) 9944 Explanation: The largest 4 digit number is = 9999After dividing 9999 with 88, we get 55 as remainderso largest 4 digit number divisible by 88 = 9999-55 = 9944.