IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Find the value of 1.21x0.91.1x0.11? 973 05b5cc6cae4d2b4197774e001
5b5cc6cae4d2b4197774e001- 10false
- 21false
- 33true
- 45false
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उत्तर : 3. "3"
व्याख्या :
Answer: C) 3 Explanation: Given 1.21x0.91.1x0.11 = 1.21x100x0.9x101.1x10x0.11x100 = 9 = 3.
प्र: A can finish a work in 18 days and B can do the same work in half the time taken by A. then, working together, what part of the same work they can finish in a day ? 973 05b5cc6dde4d2b4197774ea14
5b5cc6dde4d2b4197774ea14- 1Total workfalse
- 2One-fourth workfalse
- 3Half worktrue
- 4Two-third workfalse
- उत्तर देखें
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उत्तर : 3. "Half work"
व्याख्या :
Answer: C) Half work Explanation: A can do the work = 18 daysB can do the work = 18/2 = 9 days(A + B)'s 1 day work = 1/18 + 1/9 = 1/6=> In 3 days = 3x1/6 = 1/2 work is completed.
प्र: What is the capital of the country Turkmenistan ? 969 05b5cc6cbe4d2b4197774e0d1
5b5cc6cbe4d2b4197774e0d1- 1Dushanbefalse
- 2Ashgabattrue
- 3Bishkekfalse
- 4Astanafalse
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उत्तर : 2. "Ashgabat"
व्याख्या :
Answer: B) Ashgabat Explanation:
प्र: What is consumption disease in the 19th century? 969 05b5cc6b6e4d2b4197774d5c8
5b5cc6b6e4d2b4197774d5c8- 1Tuberculosistrue
- 2Paralysisfalse
- 3Plaguefalse
- 4Cholerafalse
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उत्तर : 1. "Tuberculosis"
व्याख्या :
Answer: A) Tuberculosis Explanation: Tuberculosis (TB) was the leading cause of death in the United States and one of the most feared diseases in the world during the 19th and early 20th centuries. Formerly known as Consumption diseases because many types of lung diseases were lumped under the term 'consumption'. Lung cancer and bronchitis were examples.
प्र: A train is moving and crossing a man who is running on a platform of 100 m at a speed of 8 kmph in the direction of the train, in 9 sec. If the speed of the train is 74 kmph. Find the length of the train ? 967 05b5cc6c3e4d2b4197774dc27
5b5cc6c3e4d2b4197774dc27- 1202 mtsfalse
- 2188 mtsfalse
- 3165 mtstrue
- 4156 mtsfalse
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उत्तर : 3. "165 mts"
व्याख्या :
Answer: C) 165 mts Explanation: Let the length of the train = L mts Relative speed of train and man = 74 - 8 = 66 kmph = 66 x 5/18 m/s => 66 x 5/18 = L/9 => L = 165 mts.
प्र: What will come in place of question mark (?) in the following number series? 4, 3, 4, 7, 15, ? 965 05b5cc6c5e4d2b4197774dde6
5b5cc6c5e4d2b4197774dde6- 142false
- 244true
- 353false
- 456false
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उत्तर : 2. "44"
व्याख्या :
Answer: B) 44 Explanation: 4 3 4 7 15 ? ×1-1 ×1+1 ×2-1 ×2+1 ×3-1 15x3 - 1 = 45 - 1 = 44
प्र: Which of the following is the world's most poisonous snake called Hydrophis ? 964 05b5cc6c5e4d2b4197774dd96
5b5cc6c5e4d2b4197774dd96- 1Adderfalse
- 2Boafalse
- 3Cobrafalse
- 4Sea Snaketrue
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उत्तर : 4. "Sea Snake"
व्याख्या :
Answer: D) Sea Snake Explanation:
प्र: The Human Resource Development Ministry and the External Affairs Ministry launched an online verification portal ___________ to make the document verification process easier. 964 05b5cc6dbe4d2b4197774e8f0
5b5cc6dbe4d2b4197774e8f0- 1e-bharatfalse
- 2e-sanadtrue
- 3e-foriegnfalse
- 4e-verifyfalse
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उत्तर : 2. "e-sanad"
व्याख्या :
Answer: B) e-sanad Explanation: The Human Resource Development Ministry and the External Affairs Ministry launched an online verification portal to make the document verification process easier for students who planning to study abroad. The Central Board of Secondary Education’s (CBSE) academic repository of degrees and certificates “Parinam Manjusha” was also involved in the project of creating “eSanad”.