IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Guess the Number which satisfies the Logic behind ? 1695 05b5cc6d2e4d2b4197774e471
5b5cc6d2e4d2b4197774e471- 17false
- 214false
- 310true
- 419false
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उत्तर : 3. "10"
व्याख्या :
Answer: C) 10 Explanation: Adding the corresponding numbers in first and last figures gives the corresponding number in the middle figure. i.e, 4 + 3 = 7 13 + 2 = 15 2 + 4 = 6 9 + 1 = 10
प्र: A earns 50% of B's salary, B earns 80% of C's salary. If the total earnings for a month is Rs. 22000, then what is the earning for A ? 1695 05b5cc6c3e4d2b4197774dc3b
5b5cc6c3e4d2b4197774dc3b- 1Rs. 4000true
- 2Rs. 4200false
- 3Rs. 4400false
- 4Rs. 4600false
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उत्तर : 1. "Rs. 4000"
व्याख्या :
Answer: A) Rs. 4000 Explanation: Let C's salary be Rs. x Then B's salary = 80x/100 => A's salary = (50/100) * (80x/100) = 40x/100 But given total earnings in a month = 22000 => x + 80x/100 + 40x/100 = 22000 => x + 120x/100 = 22000 => x = 10000 => A's salary = 40 x 10000/100 = Rs. 4000
प्र: World Soil Day is celebrated on ? 1694 05b5cc6cee4d2b4197774e283
5b5cc6cee4d2b4197774e283- 1July 26false
- 2June 30false
- 3August 9false
- 4December 5true
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उत्तर : 4. "December 5"
व्याख्या :
Answer: D) December 5 Explanation:
प्र: A man sell 35 waffers for Rs. 15 each and loses Rs. 40.4. If he sells 35 waffers for Rs. 18, how much does he loss or gain ? 1694 15b5cc74ae4d2b4197774fa95
5b5cc74ae4d2b4197774fa95- 1Rs. 64true
- 2Rs. 52false
- 3Rs. 72false
- 4Rs. 55false
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उत्तर : 1. "Rs. 64"
व्याख्या :
Answer: A) Rs. 64 Explanation: Given Loss = Rs. 40.4We know loss = cost price - selling price 40.4 = CP - 35(15)=> CP = 40.4 + 525=> CP = Rs. 565.4Now the New selling price of waffer is Rs. 18=> SP = 35(18) = 630Now Gain = SP - CP = 630 -565.4 = Rs. 64.6.
प्र: What is the value of KL ? Statement A: K2= 4.Statement B: L = 0. 1694 05b5cc6d2e4d2b4197774e451
5b5cc6d2e4d2b4197774e451- 1Only A is sufficientfalse
- 2Only B is sufficienttrue
- 3Both (A) and (B) are sufficientfalse
- 4A) and (B) are sufficient D)false
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उत्तर : 2. "Only B is sufficient"
व्याख्या :
Answer: B) Only B is sufficient Explanation: From statement B, As the value of L = 0, the value of KL = 0. Hence only statement B is sufficient.
प्र: Which of these is a receptor molecule? 1693 05b5cc658e4d2b4197774bdb3
5b5cc658e4d2b4197774bdb3- 1Afalse
- 2Btrue
- 3Cfalse
- 4Efalse
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उत्तर : 2. "B"
व्याख्या :
Answer: B) B Explanation: The receptor molecules, which receive signals from outside the cell, passing the signal to the inside. In order for a nerve cell, or any cell, to perceive its environment, it needs a sensory apparatus. And for an individual cell, most of that sensation is derived at the cell surface. So, it expresses on its cell surface proteins that span across the membrane. In the outside world, these proteins can act to receive signals, catching molecules on the outside and then as the molecule passes to the inside of the cell, they can send signals like alarm signals that can tell the cell that a particular molecule is outside. Hence, here B is the receptor cell.
प्र: Poor people have it. Rich people need it. If you eat it you die. What is it? 1693 05b5cc699e4d2b4197774c69b
5b5cc699e4d2b4197774c69b- 1Moneyfalse
- 2Brainfalse
- 3Luxury itemsfalse
- 4Nothingtrue
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उत्तर : 4. "Nothing"
व्याख्या :
Answer: D) Nothing Explanation: Poor people have Nothing Rich people need Nothing If you eat Nothing you die. Hence, it is Nothing.
प्र: Carbohydrates, lipids and proteins are classified as 1693 05b5cc62fe4d2b4197774b964
5b5cc62fe4d2b4197774b964- 1Macromoleculesfalse
- 2Biomoleculesfalse
- 3Macronutrientsfalse
- 4All the abovetrue
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उत्तर : 4. "All the above"
व्याख्या :
Answer: D) All the above Explanation: Carbohydrates, together with lipids, proteins and nucleic acids, are one of the four major classes of biologically essential organic molecules found in all living organisms. They not only provide energy for vital metabolic reactions but also supply the building materials for normal structure, growth and repair. Your body needs relatively large quantities of carbohydrates, fats and protein for optimal function, hence their classification as macronutrients.

