IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Avanthi’s age is 1/6th of her father’s age. Her father’s age will be twice of Kapil’s age after 10 years. If Kapil’s eighth birthday was celebrated two years ago, then what is Avanthi’s present age ? 1785 05b5cc754e4d2b4197774fb90
5b5cc754e4d2b4197774fb90- 16 yearsfalse
- 24 yearsfalse
- 37 yearsfalse
- 4Nonetrue
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 4. "None"
व्याख्या :
Answer: D) None Explanation: As given Kapil's 8th birthday was celebrated 2 years ago, Kapil’s present age = 8 + 2 = 10 years. Father's age is twice of Kapil’s age after 10 years. => F + 10 = 2 (K + 10) = 2 (10+ 10)F = 30years, Avanthi's age =1/6(F) = 30/6 = 5 years.
प्र: Which organelle is the control center of a cell? 1784 05b5cc69fe4d2b4197774ca0f
5b5cc69fe4d2b4197774ca0f- 1Nucleustrue
- 2Cytoplasmfalse
- 3Cell membranefalse
- 4endoplasmic reticulumfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "Nucleus"
व्याख्या :
Answer: A) Nucleus Explanation: Nucleus serves as the control center for cell metabolism and reproduction.
प्र: Who has become the first cricketer to score 10,000 runs in T20 cricket ? 1784 05b5cc6ebe4d2b4197774ee96
5b5cc6ebe4d2b4197774ee96- 1David Warnerfalse
- 2Virat Kohlifalse
- 3Chris Gayletrue
- 4Suresh Rainafalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 3. "Chris Gayle"
व्याख्या :
Answer: C) Chris Gayle Explanation:
प्र: If the price of diesel increases by 25% and Karthik intends to spend only an additional 15% on diesel, by how much % will he reduce the quantity of diesel purchased ? 1784 05b5cc6d3e4d2b4197774e4a5
5b5cc6d3e4d2b4197774e4a5- 16.67 %false
- 28 %true
- 37.41 %false
- 49 %false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "8 %"
व्याख्या :
Answer: B) 8 % Explanation: Let the price of 1 litre of diesel be Rs.x and let Karthik initially buy 'y' litres of diesel. Therefore, he would have spent Rs. xy on diesel. When the price of diesel increases by 25%, the new price per litre of diesel is 1.25x. Karthik intends to increase the amount he spends on diesel by 15%.i.e., he is willing to spend xy + 15% of xy = 1.15xy Let the new quantity of diesel that he can get be 'q'.Then, 1.25x x q = 1.15xyOr q = (1.15/1.25)y = 0.92y. As the new quantity that he can buy is 0.92y, he gets 0.08y lesser than what he used to get earlier. Or a reduction of 8%.
प्र: How many Types of Soil in India? 1784 05b5cc6b9e4d2b4197774d6c1
5b5cc6b9e4d2b4197774d6c1- 14false
- 25false
- 37false
- 48true
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 4. "8"
व्याख्या :
Answer: D) 8 Explanation: There are 8 different types of Soils present in India. They are primarily differentiated on the basis of composition and structure. They are :: 1. Alluvial soils, 2. Black soils, 3. Red soils, 4. Laterite and Lateritic soils, 5. Forest and Mountain soils, 6. Arid and Desert soils, 7. Saline and Alkaline soils and 8. Peaty and Marshy soils.
प्र: 1.12.91 is the first Tuesday. Which is the fourth Thursday of December 91 ? 1784 05b5cc6dbe4d2b4197774e8ff
5b5cc6dbe4d2b4197774e8ff- 122.12.91false
- 225.12.91true
- 324.12.91false
- 423.12.91false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "25.12.91"
व्याख्या :
Answer: B) 25.12.91 Explanation: Given that 2.12.91 is the first TuesdayHence we can assume that 4.12.91 is the first Thursday If we add 7 days to 4.12.91, we will get second ThursdayIf we add 14 days to 4.12.91, we will get third ThursdayIf we add 21 days to 4.12.91, we will get fourth Thursday => fourth Thursday = (4.12.91 + 21 days) = 25.12.91.
प्र: The most populous city in the world is ? 1783 05b5cc6e0e4d2b4197774eb3e
5b5cc6e0e4d2b4197774eb3e- 1Tokyotrue
- 2Parisfalse
- 3Pekingfalse
- 4Londonfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "Tokyo"
व्याख्या :
Answer: A) Tokyo Explanation:
प्र: Function of Bile juice? 1783 05b5cc6a9e4d2b4197774ced4
5b5cc6a9e4d2b4197774ced4- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर :
व्याख्या :
Bile contains bile acids, which are critical for digestion and absorption of fats in the small intestine. Since bile increases the absorption of fats, it is an important part of the absorption of the fat-soluble substances, such as the vitamins A, D, E, and K. Besides its digestive function, many waste products, including bilirubin, a byproduct of red blood cells recycled by the liver are eliminated from the body by secretion into bile and elimination in feces.

