IIT JEE Practice Question and Answer
8Q: The Indian to beat the computers in mathematical wizardry is 4474 05b5cc6a2e4d2b4197774cb66
5b5cc6a2e4d2b4197774cb66- 1Shakuntala Devitrue
- 2Raja Ramannafalse
- 3Rina Panigrahifalse
- 4Ramanujamfalse
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Answer : 1. "Shakuntala Devi"
Explanation :
Answer: A) Shakuntala Devi Explanation:
Q: In order to maximize his gain, a shopping mall owner decides to reduce the price of electronics goods by 20% and as a result of this, the sales of electronics increase by 40%. If, as a result of these changes, he is able to increase his weekly collection by Rs. 1,05,000, find by what value did the gross collection increase per day? 4469 05b5cc6aee4d2b4197774d188
5b5cc6aee4d2b4197774d188- 1Rs. 14400false
- 2Rs. 14600false
- 3Rs. 14800false
- 4Rs. 15000true
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Answer : 4. "Rs. 15000"
Explanation :
Answer: D) Rs. 15000 Explanation: It won't requires that much solving. Here given the increase in weekly collection by Rs. 1,05,000 That is this increase denotes for all 7 days. => Gross Collection increase per day = Rs. 1,05,0007 = Rs. 15,000 Hence, the gross collection increase per day = Rs. 15,000.
Q: The product of a number and its multiplicative inverse is 4439 05b5cc64de4d2b4197774bc70
5b5cc64de4d2b4197774bc70- 11true
- 20false
- 3-1false
- 4Infinityfalse
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Answer : 1. "1"
Explanation :
Answer: A) 1 Explanation: The mutiplicative inverse of a number is nothing but a reciprocal of a number. Now, the product of a number and its multiplicative inverse is always equal to 1. For example : Let the number be 15 Multiplicative inverse of 15 = 1/15 The product of a number and its multiplicative inverse is = 15 x 1/15 = 1.
Q: Which action is the best example of a direct observation? 4427 05b5cc66de4d2b4197774bfaa
5b5cc66de4d2b4197774bfaa- 1listening to a cricket chirp at night and counting the number of chirps per minutetrue
- 2determining the seal population of an island by counting seals in 10 square meters of the islandfalse
- 3identifying which bird was present by the tracks that it leaves in the sand at a beachfalse
- 4reading numbers on a heat sensor to conclude that there is a deer in the night woodsfalse
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Answer : 1. "listening to a cricket chirp at night and counting the number of chirps per minute"
Explanation :
Answer: A) listening to a cricket chirp at night and counting the number of chirps per minute Explanation:
Q: The first synthetic fibre made by man was ____ ? 4426 15b5cc6e0e4d2b4197774eb2f
5b5cc6e0e4d2b4197774eb2f- 1Rayonfalse
- 2Terycottfalse
- 3Polyesterfalse
- 4Nylontrue
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Answer : 4. "Nylon"
Explanation :
Answer: D) Nylon Explanation:
Q: I learnt from my experience that by______ my anger and resentment, and by avoiding _________ I could overcome opponents more successfully than could those who openly defied their adversaries. 4422 05b5cc731e4d2b4197774f7f6
5b5cc731e4d2b4197774f7f6- 1suppressing, conflicttrue
- 2expressing, hostilityfalse
- 3stifling, temperancefalse
- 4rousing, wrathfalse
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Answer : 1. "suppressing, conflict"
Explanation :
Answer: A) suppressing, conflict Explanation:
Q: Grapes : Wine :: Squid : ? 4421 05b5cc69de4d2b4197774c93d
5b5cc69de4d2b4197774c93d- 1Oceanfalse
- 2Saladfalse
- 3Calamaritrue
- 4Fishingfalse
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Answer : 3. "Calamari"
Explanation :
Answer: C) Calamari Explanation: Here the given words follow a relation in such a way that, grapes are made into wine. Similarly, squid are made into calamari. Hence, Grapes : Wine :: Squid : Calamari
Q: If A x B means A is to the south of B; A + B means A is to the north of B; A % B means A is to the east of B; A - B means A is to the west of B; then in P % Q + R - S, S is in which direction with respect to Q ? 4406 05b5cc71be4d2b4197774f512
5b5cc71be4d2b4197774f512- 1South-Easttrue
- 2North-Westfalse
- 3Eastfalse
- 4Westfalse
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Answer : 1. "South-East"
Explanation :
Answer: A) South-East Explanation: P % Q + R - S=> P is to the East of Q, who is to the North of R, who is to the West of S.=> Q.....P R.....S=> With respect to Q, S is to the South-East of Q.