प्रश्न और उत्तर का अभ्यास करें
8प्र: Vishal and Raghu jointly started a business. Vishal invested three times as Raghu did and invested his money for double time as compared to Raghu. Raghu earned Rs. 4000. If the gain is proportional to the money invested and the time for which the money is invested then the total gain was ? 2022 05b5cc6dee4d2b4197774ea8f
5b5cc6dee4d2b4197774ea8f- 1Rs. 28,000true
- 2Rs. 18,000false
- 3Rs. 14,000false
- 4Rs. 8,000false
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उत्तर : 1. "Rs. 28,000"
व्याख्या :
Answer: A) Rs. 28,000 Explanation: Investments ratio is = 3:1Time period ratio is = 2:1 As they are proportional to gain ------Gain ratio of Vishal and raghu = 6:1 But given Raghu got Rs. 4000, =? 1 ----- 4000 7 ----- ? => Rs.28,000 The total gain = Rs.28,000
प्र: Compressions and Rarefactions are characteristic of 2022 05b5cc6a9e4d2b4197774ceea
5b5cc6a9e4d2b4197774ceea- 1Longitudinal wavestrue
- 2Transverse wavesfalse
- 3Both A & Bfalse
- 4Neither of A & Bfalse
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उत्तर : 1. "Longitudinal waves"
व्याख्या :
Answer: A) Longitudinal waves Explanation: Compressions and Rarefactions are characteristic of Longitudinal waves. The direction of vibration of the particles is in the same plane as in which the wave is propagating. The particles vibrate back and forth, about their mean positions.
प्र: Antonym for Durable 2022 05b5cc6aee4d2b4197774d197
5b5cc6aee4d2b4197774d197- 1Pressurefalse
- 2Flimsytrue
- 3Hard-wearingfalse
- 4Withstandfalse
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उत्तर : 2. "Flimsy"
व्याख्या :
Answer: B) Flimsy Explanation: Durable means able to withstand wear, pressure. Antonyms for Durable are Delicate, Flimsy, Short-lived.
प्र: भारत में किस राज्य को ‘पांच नदियों की भूमि’ कहा जाता है?
2022 05dc8e7be513f8a7589a02164
5dc8e7be513f8a7589a02164- 1उत्तर प्रदेशfalse
- 2पंजाबtrue
- 3हरियाणाfalse
- 4बिहारfalse
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उत्तर : 2. "पंजाब"
प्र: किस भारतीय राज्य द्वारा गरीब परिवारों और सार्वजनिक कार्यालयों के लिए मुफ्त इंटरनेट के लिए पहली परियोजना लांच की गयी है?
2022 05fa423efc21c860b9731767b
5fa423efc21c860b9731767b- 1केरलtrue
- 2राजस्थानfalse
- 3पंजाबfalse
- 4महाराष्ट्रfalse
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उत्तर : 1. "केरल"
प्र: किसी घन का कुल पृष्ठ क्षेत्रफल 864 वर्ग सेमी है। उसका आयतन ज्ञात करों?
2022 05e32568728cc9f701276e210
5e32568728cc9f701276e210- 1216false
- 21728true
- 3729false
- 4512false
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उत्तर : 2. "1728"
प्र: The ratio of present ages of Hema and Chinnu is 13:17. Four years ago the ratio of their ages was 11:15. What will be the ratio of their ages six years hence ? 2022 05b5cc736e4d2b4197774f86f
5b5cc736e4d2b4197774f86f- 13 : 7false
- 27 : 9false
- 34 : 5true
- 41 : 3false
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उत्तर : 3. "4 : 5"
व्याख्या :
Answer: C) 4 : 5 Explanation: Let their present ages be 13x and 17x.Then, 13x-4/17x-4 = 11/15. Solving this, we get x = 2.Required ratio = 13x2 + 6/17x2 + 6 = 32/40 = 4/5.
प्र:Change the voice in the sentences given below by selecting the correct alternative:
Many serious accidents are caused by negligence.
2021 05e6a510aee03046acc587d33
5e6a510aee03046acc587d33- 1Negligence has caused many serious accidents.false
- 2Negligence causes many serious accidents.true
- 3Negligence causing many serious accidents.false
- 4Negligence is causes many serious accidentfalse
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