IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ? 3388 05b5cc74fe4d2b4197774fb35
5b5cc74fe4d2b4197774fb35- 1145false
- 2165false
- 3175true
- 4135false
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उत्तर : 3. "175"
व्याख्या :
Answer: C) 175 Explanation: Given that, working days = 5 working hours = 8 A man get rupess per hour is Rs.2.40 So in one day the man get total rupees is 2.40 x 8 = 19.2 So in 5 days week the man get total rupees is 19.2 x 5 = 96 So in 4 week the man get total rupees is 96 x 4 = 384 So the man worked for = 160hours in 4 weeks But given that the man earned Rs.432 Hence remaning money is (432-384 = 48)which is earn by doing overtime work Overtime hours = 48/3.20 = 15 So total worked hours is = 15 + 160 = 175.
प्र: किस प्रकार की मेमोरी को सीपीयू द्वारा सीधे संबोधित नहीं किया जा सकता है और इसके लिए ईएमएस नामक विशेष सॉफ्टवेयर की आवश्यकता होती है? 3385 25b5cc6c0e4d2b4197774dadf
5b5cc6c0e4d2b4197774dadf- 1विस्तारितtrue
- 2आधारfalse
- 3पारंपरिकfalse
- 4कोई नहीfalse
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उत्तर : 1. "विस्तारित"
व्याख्या :
Answer: A) Expanded Explanation:
प्र: Rajitha has a calculator, which has 10 digits. She want to clean the calculator by removing all the keys and while reassembling it, she interchanged the locations of 3 pairs of keys. For example, if she placed the key ‘3’ in the place of the key ‘7’, she placed the key ‘7’ only in the place of the key ‘3’ and not any other key. All keys that were interchanged corresponded only to numbers. Later, she input some calculations and obtained outputs as provided in the table below. The input is shown in terms of the keys that Kavitapressed, while the output is the output displayed by the calculator. Output: 1. 95 + 84=1282. 128 + 64=1953. 912 + 43=9424. 178 + 19=192 Question : Which of the following pair of digits is unchanged ? 3385 05b5cc6d2e4d2b4197774e467
5b5cc6d2e4d2b4197774e467- 19, 0, 3false
- 21, 3, 8false
- 37, 0, 1true
- 42, 4, 1false
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उत्तर : 3. "7, 0, 1"
व्याख्या :
Answer: C) 7, 0, 1 Explanation: 0 1 2 3 4 5 6 7 8 9 0 1 4 8 2 6 5 7 3 9 Here pairs interchanged are 2, 4 3, 8 5, 6 Unchanged are 0, 1, 7, 9
प्र: 8 couples (husband and wife) attend a dance show "Nach Baliye' in a popular TV channel ; A lucky draw in which 4 persons picked up for a prize is held, then the probability that there is atleast one couple will be selected is : 3375 05b5cc7d0e4d2b41977751218
5b5cc7d0e4d2b41977751218- 18/39false
- 215/39true
- 312/13false
- 4None of thesefalse
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उत्तर : 2. "15/39"
व्याख्या :
Answer: B) 15/39 Explanation: P( selecting atleast one couple) = 1 - P(selecting none of the couples for the prize) = 1-16C1× 14C1×12C1×10C116C4=1539
प्र: How is my father's brother's only sibling's mother related to my sister's only brother ? 3370 05b5cc6e1e4d2b4197774ebc0
5b5cc6e1e4d2b4197774ebc0- 1Neicefalse
- 2Auntfalse
- 3Motherfalse
- 4Grand-mothertrue
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उत्तर : 4. "Grand-mother"
व्याख्या :
Answer: D) Grand-mother Explanation: My father's brother's only sibling is my father. My father's mother is my grandmother. My sister's only brother is myself. So she is my Grandmother.
प्र: First Bank to introduce Credit Card in India 3365 05b5cc6b9e4d2b4197774d743
5b5cc6b9e4d2b4197774d743- 1HSBC Bankfalse
- 2ICICI Bankfalse
- 3State Bank of Indiafalse
- 4Central Bank of Indiatrue
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उत्तर : 4. "Central Bank of India"
व्याख्या :
Answer: D) Central Bank of India Explanation: First Bank to introduce Credit Card in India - Central Bank of India First Bank to introduce ATM - HSBC, 1987 First Bank to introduce Internet Banking - ICICI Bank First Bank to introduce Mutual Funds - State Bank of India
प्र: The age of Sohail, Afzal and Bilal are 17,16 and 12 respectively. If the age of Aslam also included the average of the ages is increased by 5. What is the age of Aslam? 3359 05b5cc61ee4d2b4197774b77e
5b5cc61ee4d2b4197774b77e- 132false
- 233false
- 334false
- 435true
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उत्तर : 4. "35"
व्याख्या :
Answer: D) 35 Explanation: Given S = 17 yrs A = 16 yrs B = 12 yrs Average = 17 + 16 + 12/3 = 15 yrs Given if Aslam added to them, their average increases by 5 => Average of 4 members = 20 Let the age of Aslam be 'x' Then, 17 + 16 + 12 + x /4 = 20 => x = 80 - 45 => x = 35. Hence, the age of Aslam is 35 yrs.
प्र: छाया क्षेत्र मौजूद है क्योंकि 3356 05b5cc607e4d2b4197774b55d
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उत्तर :
व्याख्या :
छाया क्षेत्र किसी दिए गए भूकंप से १०४ से १४० डिग्री की कोणीय दूरी से पृथ्वी का वह क्षेत्र है जिसे कोई सीधी पी तरंगें प्राप्त नहीं होती हैं। छाया क्षेत्र S तरंगों के तरल कोर द्वारा पूरी तरह से बंद होने और P तरंगों के तरल कोर द्वारा मुड़े (अपवर्तित) होने के परिणामस्वरूप होता है। शैडो ज़ोन दो प्रकार के होते हैं: एक P तरंगों के लिए और दूसरा S तरंगों के लिए। पी तरंग छाया 104-140 डिग्री, दोनों तरफ; S तरंग छाया एक तरफ के 105 से दूसरी तरफ 105 तक।