IIT JEE Practice Question and Answer
8Q: 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: 2.5, 3.5, 9, 40, ? Find the next number in the above-given series? 2251 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 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.
Q: Grand Central Terminal Park Avenue is the world's 2250 05b5cc678e4d2b4197774c18d
5b5cc678e4d2b4197774c18d- 1smallest railway stationfalse
- 2largest railway stationtrue
- 3longest railway stationfalse
- 4None of abovefalse
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Answer : 2. "largest railway station"
Explanation :
Answer: B) largest railway station Explanation: Grand Central Terminal also referred to as Grand Central Station or Grand Central is the world’s largest railway station in terms of platforms in New York City with 44 platforms covering 48 acres.
Q: Light : Blind 2250 05b5cc696e4d2b4197774c57a
5b5cc696e4d2b4197774c57a- 1Tongue : Soundfalse
- 2Voice : Vibrationfalse
- 3Language : Deaffalse
- 4Speech : Dumbtrue
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Answer : 4. "Speech : Dumb"
Explanation :
Answer: D) Speech : Dumb Explanation: Here the two pair of words related in such a way that, a blind can't see the light. Similarly, a dumb cannot speech. Hence, Light : Blind :: Speech : Dumb.
Q: In what ratio must wheat at Rs. 3.20/kg be mixed with wheat at Rs. 2.90/kg so that the mixture be worth Rs. 3/kg? 2248 05b5cc639e4d2b4197774baa0
5b5cc639e4d2b4197774baa0- 11:2false
- 23:2false
- 32:1true
- 42:3false
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Answer : 3. "2:1"
Explanation :
Answer: C) 2:1 Explanation: Given rate of wheat at cheap = Rs. 2.90/kg Rate of wheat at cost = Rs. 3.20/kg Mixture rate = Rs. 3/kg Ratio of mixture = 2.90 3.20 3 (3.20 - 3 = 0.20) (3 - 2.90 = 0.10) 0.20 : 0.10 = 2:1 Hence, wheat at Rs. 3.20/kg be mixed with wheat at Rs. 2.90/kg in the ratio of 2:1, so that the mixture be worth Rs. 3/kg.
Q: What does 'M' stand for in chemistry? 2248 05b5cc615e4d2b4197774b6bd
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Answer :
Explanation :
'M' is used as a unit of molarity and stands for mole per litre i.e, number of moles of solute per liter of solution.
Q: A shopkeeper sells one-third of his goods at a profit of 10%, another one-third at a profit of 20%, and the rest at a loss of 6%.What is his overall profit percentage ? 2247 05b5cc7a5e4d2b41977750674
5b5cc7a5e4d2b41977750674- 16%false
- 28%true
- 310%false
- 412%false
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Answer : 2. "8%"
Explanation :
Answer: B) 8% Explanation: Let the shopkeeper buy 300g for Rs.300. Now he sells 100g for Rs.110, another 100g for Rs120, and the rest 100g for Rs94. Therefore, the total amount he receives = Rs.110 + Rs.120 + Rs.94 = 324. Therefore, the shopkeeper spends Rs.300 and gets back Rs.324. Therefore, his profit percentage = 24300x100 % = 8%

