IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Find the odd man out in the following number series? 5, 4, 9, 32, 273 3491 05b5cc695e4d2b4197774c500
5b5cc695e4d2b4197774c500- 14false
- 29false
- 332true
- 4273false
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उत्तर : 3. "32"
व्याख्या :
Answer: C) 32 Explanation: The given number series follows 5, 4, 9, 32, 308 pattern that 5 5 x 1 - 1 = 4 4 x 3 - 3 = 9 9 x 5 - 5 = 40 (not equals to 32) 40 x 7 - 7 = 273 Hence, the odd man in the given number series is 32.
प्र: Which of the following is true of VoIP? 3491 05b5cc615e4d2b4197774b6d8
5b5cc615e4d2b4197774b6d8- 1It uses the public switched telephone network.false
- 2Skype is an example of VoIP software.true
- 3It uses a slow speed dial-up connection.false
- 4All of the abovefalse
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उत्तर : 2. "Skype is an example of VoIP software."
व्याख्या :
Answer: B) Skype is an example of VoIP software. Explanation: VOIP is an acronym for Voice Over Internet Protocol, or in more common terms phone service over the Internet. Voice over Internet Protocol is a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN.
प्र: Which city is located on the banks of the river Mula-Mutha? 3487 05b5cc6b1e4d2b4197774d309
5b5cc6b1e4d2b4197774d309- 1Punetrue
- 2Nagpurfalse
- 3Ahmedabadfalse
- 4Suratfalse
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उत्तर : 1. "Pune"
व्याख्या :
Answer: A) Pune Explanation: The Mula-Mutha is a river in India, formed by the confluence of the Mula and Mutha rivers in the city of Pune, which later meets the Bhima River, which itself later meets the Krishna River and finally emptying to the Bay of Bengal.
प्र: Gases used in normal welding? 3484 05b5cc688e4d2b4197774c327
5b5cc688e4d2b4197774c327- 1Oxygen and Acetylenetrue
- 2Acetylene and Nitrogenfalse
- 3Oxygen, Hydrogen and Acetylenefalse
- 4Oxygen and Hydrogenfalse
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उत्तर : 1. "Oxygen and Acetylene"
व्याख्या :
Answer: A) Oxygen and Acetylene Explanation: Normal Gas welding use oxygen-acetylene. Depending on what materials you are welding, there are some more options that might be used. For example - MIG/TIG use Argon, MAG use an argon-something mix.
प्र: Sum of the ages of Rajesh, Suresh, Mahesh and Dinesh is 76 years. 7 years hence, their age ratio is 7:6:5:8. Find Mahesh’s present age ? 3481 05b5cc6c2e4d2b4197774dba5
5b5cc6c2e4d2b4197774dba5- 117 yearsfalse
- 213 yearstrue
- 314 yearsfalse
- 416 yearsfalse
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उत्तर : 2. "13 years"
व्याख्या :
Answer: B) 13 years Explanation: Given R + S + M + D = 76 => R+7 : S+7 : M+7 : D+7 = 7:6:5:8 => Let the ratio = x => M+7 = 5x => M = 5x-7 => R = 7x-7 => S = 6x-7 => D = 8x-7 => R + S + M + D = 76 => 7x-7 + 6x-7 + 5x-7 + 8x-7 = 76 => 26x - 28 = 76 => 26x = 104 => x = 4 => Mahesh's present age = 5x-7 = 20 - 7 = 13 years.
प्र: A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's husband age is ? 3479 05b5cc720e4d2b4197774f613
5b5cc720e4d2b4197774f613- 145false
- 224false
- 342false
- 454true
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उत्तर : 4. "54"
व्याख्या :
Answer: D) 54 Explanation: By trial and error method from the given options, as 54 - 45 = (1/11) x (45+54) = 99/11 = 9 Hence this satisfies the given conditions. Then the woman's husband age is 54.
प्र: ROM में भंडारित प्रोग्राम कहलाते हैं 3476 15b5cc6a9e4d2b4197774ceef
5b5cc6a9e4d2b4197774ceef- 1हार्डवेयरfalse
- 2फर्मवेयरtrue
- 3फ्रीवेयरfalse
- 4सॉफ्टवेयरfalse
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उत्तर : 2. "फर्मवेयर"
व्याख्या :
Answer: B) फर्मवेयर स्पष्टीकरण: वे प्रोग्राम जो हार्डवेयर की तरह स्थायी होते हैं और ROM में संग्रहीत होते हैं, फर्मवेयर के रूप में जाने जाते हैं। ROM में संग्रहीत डेटा को केवल धीरे-धीरे, कठिनाई के साथ संशोधित किया जा सकता है, या बिल्कुल भी नहीं, इसलिए इसका उपयोग मुख्य रूप से फर्मवेयर (सॉफ्टवेयर जो विशिष्ट हार्डवेयर से निकटता से जुड़ा हुआ है, और लगातार अपडेट की आवश्यकता नहीं है) या एप्लिकेशन सॉफ़्टवेयर को प्लग-इन में संग्रहीत करने के लिए किया जाता है। कारतूस।
प्र: How many 7 digit numbers can be formed using the digits 1, 2, 0, 2, 4, 2, 4? 3475 05b5cc7d1e4d2b41977751295
5b5cc7d1e4d2b41977751295- 1120false
- 2360true
- 3240false
- 4424false
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उत्तर : 2. "360"
व्याख्या :
Answer: B) 360 Explanation: There are 7 digits 1, 2, 0, 2, 4, 2, 4 in which 2 occurs 3 times, 4 occurs 2 times. Number of 7 digit numbers = 7!3!×2! = 420 But out of these 420 numbers, there are some numbers which begin with '0' and they are not 7-digit numbers. The number of such numbers beginning with '0'. =6!3!×2! = 60 Hence the required number of 7 digits numbers = 420 - 60 = 360

