IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Rs.1200 divided among P, Q and R. P gets half of the total amount received by Q and R. Q gets one-third of the total amount received by P and R. Find the amount received by R ? 5171 05b5cc6e1e4d2b4197774ebd9
5b5cc6e1e4d2b4197774ebd9- 1Rs. 1100false
- 2Rs. 500true
- 3Rs. 1200false
- 4Rs. 700false
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उत्तर : 2. "Rs. 500"
व्याख्या :
Answer: B) Rs. 500 Explanation: Let the amounts to be received by P, Q and R be p, q and r.p + q + r = 1200p = 1/2 (q + r) => 2p = q + r Adding 'p' both sides, 3p = p + q + r = 1200=> p = Rs.400 q = 1/3 (p + r) => 3q = p + r Adding 'q' both sides, 4q = p + q + r = 1200=> q = Rs.300 r = 1200 - (p + q) => r = Rs.500.
प्र: मेन मेमोरी दो प्रकार की होती है 5167 25b5cc6a7e4d2b4197774ce3b
5b5cc6a7e4d2b4197774ce3b- 1रेंडम और सीक्वेंशियलfalse
- 2ROM और RAMtrue
- 3प्राइमरी और सेकेंडरीfalse
- 4उपरोक्त सभीfalse
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उत्तर : 2. "ROM और RAM"
व्याख्या :
Answer: B) ROM और RAM व्याख्या: मुख्य मेमोरी को कंप्यूटर में सेंट्रल स्टोरेज के रूप में परिभाषित किया जाता है। (संज्ञा) मुख्य मेमोरी का एक उदाहरण है जहां प्रोग्राम और डेटा को तब रखा जाता है जब प्रोसेसर सक्रिय रूप से उनका उपयोग कर रहा हो। कंप्यूटर का मुख्य भंडारण क्षेत्र, जिसमें केंद्रीय प्रोसेसर की तत्काल या सीधी पहुंच होती है, दो प्रकार का होता है। वे हैं :: RAM - रैंडम एक्सेस मेमोरी ROM - रीड ओनली मेमोरी।
प्र: In a scheme, a pack of three soaps with MRP Rs.45 is available for Rs.42. If it still gives a profit of 5% to the shopkeeper, then the cost price of the pack is ? 5165 05b5cc728e4d2b4197774f737
5b5cc728e4d2b4197774f737- 138false
- 239false
- 340true
- 441false
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उत्तर : 3. "40"
व्याख्या :
Answer: C) 40 Explanation: Given M.P=45,S.P=42, Profit = 0.05 Let C.P=x , Then Profit = (42-x)/x = 0.05=> x = 40.
प्र: Correct underlined words if necessary in the following sentence ? Have you been more careful, the accident could have been averted. 5133 05b5cc6fee4d2b4197774f107
5b5cc6fee4d2b4197774f107- 1Have you beenfalse
- 2If you have beenfalse
- 3Had you beentrue
- 4If you could have beenfalse
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उत्तर : 3. "Had you been"
व्याख्या :
Answer: C) Had you been Explanation: As the sentence talks about the past it is apt to say. 'Had you been more careful ...'.
प्र: The Computer size was very large in 5122 05b5cc6afe4d2b4197774d1ab
5b5cc6afe4d2b4197774d1ab- 1Fourth Generationfalse
- 2Third Generationfalse
- 3Second Generationfalse
- 4First Generationtrue
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उत्तर : 4. "First Generation"
व्याख्या :
Answer: D) First Generation Explanation: The First Generation Computers size was very large. Since the First generation computers used 1000s of vacuum tubes that required lot of space made them gigantic in size. Single transistor could replace 1000 vacuum tubes and a single IC chip replaced 1000s of transistors made computers smaller and more speedy. It is obvious that computers developed with more power, reliability, speed and smaller sizes due to the enhancement of technology.
प्र: The first step in solving an Ethical Dilemma is to 5098 05b5cc6aae4d2b4197774cf33
5b5cc6aae4d2b4197774cf33- 1identify the alternativesfalse
- 2identify an etical situation and ethical issues involvedtrue
- 3weigh the impact of each alternative on various stakeholders.false
- 4recognize and analyze the principal elements in the situation.false
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उत्तर : 2. "identify an etical situation and ethical issues involved"
व्याख्या :
Answer: B) identify an etical situation and ethical issues involved Explanation:
प्र: Cup : Lip :: Bird : ? 5078 05b5cc69be4d2b4197774c7ee
5b5cc69be4d2b4197774c7ee- 1Grasstrue
- 2Forestfalse
- 3Beakfalse
- 4Bushfalse
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उत्तर : 1. "Grass"
व्याख्या :
Answer: A) Grass Explanation: Cup is used to drink something with the help of lips. Similarly, birds collect grass with the help of beak to make her nest. Hence, Cup : Lip :: Bird : Grass.
प्र: The largest measuring cylinder that can accurately fill 3 tanks of capacity 98, 182 and 266 litres each, is of capacity ? 5068 05b5cc72ce4d2b4197774f73c
5b5cc72ce4d2b4197774f73c- 17 ltsfalse
- 214 ltstrue
- 398 ltsfalse
- 442 ltsfalse
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उत्तर : 2. "14 lts"
व्याख्या :
Answer: B) 14 lts Explanation: To know the the measuring cylinder that can fill all the given capacities , they must be divisible by the required number. 98,182,266 all are divisible by 14 So 14 litres is the largest cylinder that can fill all the given cylinders. (or) The other method is take HCF of all given capacities i.e 98, 182 and 266.