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प्र: Light from the sun reaches us in nearly 1849 0

उत्तर : 3. "8 min"
व्याख्या :
Answer: C) 8 min Explanation: The light from the sun takes about 8 minutes to reach the Earth after it has been emitted from the sun's surface. The time it takes for light to reach planets in our Solar System varies from about 3 minutes for Mercury to about 5.3 hours for Pluto.

प्र: A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in evaluation ? 1848 0

उत्तर : 3. "84%"
व्याख्या :
Answer: C) 84% Explanation: Let the number be 'x' Then, according to the given data, 52x-25x52xx100 = 2125x100 = 84%

प्र: Metals are good conductors of electricity because 1848 0

उत्तर : 2. "They contain free electrons"
व्याख्या :
Answer: B) They contain free electrons Explanation: Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity. Because the electrons in the atom's higher energy levels can separate from the atoms easily, they can be pulled out with very little energy. Because the molecular structure of the metal is such that 'free electrons' are free to move, thus being categorized as electrically conductive. For example, copper is used for electrical wiring because it is a good conductor of electricity.

प्र: Which state government has launched “Mahaswayam portal” for job seekers and employers ? 1848 0

उत्तर : 4. "Maharashtra"
व्याख्या :
Answer: D) Maharashtra Explanation: The Chief Minister of Maharashtra Devendra Fadnavis has recently launched a web portal ‘Mahaswayam’ for job seekers, employers, entrepreneurs and training institutes. At ‘Mahaswayam’, job seekers will be able to register themselves, search as well as apply for jobs, inquire for training, get information on self-employment and get details of job fairs. Besides, training institutes can also register, get details on participation in the state skill development programme, get training fee receipts, and can also receive training fee through ECS. Apart from this, entrepreneurs can also post job vacancy advertisements at the portal.

प्र: There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number ? 1848 0

उत्तर : 3. "13"
व्याख्या :
Answer: C) 13 Explanation: (385/1001) = 5/13 First Number is 5 => Fourth number is 13

प्र: A passenger train is moving at a speed of 120 km/hr. If the length of the train is 101 meters, how long will it take to cross a railway platform 154 meters long ? 1847 0

उत्तर : 4. "7.65 sec"
व्याख्या :
Answer: D) 7.65 sec Explanation: Here total distance = 154 + 101 = 255 mtsGiven speed = 120 kmph = 120x5/18 m/secHence, Time = d/s = 255x18/120x5 = 7.65 sec

प्र: The probability that a number selected at random from the first 100 natural numbers is a composite number is ? 1846 0

उत्तर : 1. "3/2"
व्याख्या :
Answer: A) 3/2 Explanation: The number of exhaustive events = 100 C₁ = 100. We have 25 primes from 1 to 100. Number of favourable cases are 75. Required probability = 75/50 = 3/2.

प्र: Agha khan cup is associated with 1845 0

प्र: Light from the sun reaches us in nearly 1849 0

प्र: A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in evaluation ? 1848 0

उत्तर : 3. "84%"
व्याख्या :
Answer: C) 84% Explanation: Let the number be 'x' Then, according to the given data, 52x-25x52xx100 = 2125x100 = 84%

प्र: Metals are good conductors of electricity because 1848 0

प्र: Which state government has launched “Mahaswayam portal” for job seekers and employers ? 1848 0

प्र: There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number ? 1848 0

उत्तर : 3. "13"
व्याख्या :
Answer: C) 13 Explanation: (385/1001) = 5/13 First Number is 5 => Fourth number is 13

प्र: A passenger train is moving at a speed of 120 km/hr. If the length of the train is 101 meters, how long will it take to cross a railway platform 154 meters long ? 1847 0

उत्तर : 4. "7.65 sec"
व्याख्या :
Answer: D) 7.65 sec Explanation: Here total distance = 154 + 101 = 255 mtsGiven speed = 120 kmph = 120x5/18 m/secHence, Time = d/s = 255x18/120x5 = 7.65 sec

प्र: The probability that a number selected at random from the first 100 natural numbers is a composite number is ? 1846 0

उत्तर : 1. "3/2"
व्याख्या :
Answer: A) 3/2 Explanation: The number of exhaustive events = 100 C₁ = 100. We have 25 primes from 1 to 100. Number of favourable cases are 75. Required probability = 75/50 = 3/2.

प्र: Agha khan cup is associated with 1845 0

उत्तर : 4. "Hockey"
व्याख्या :
Answer: D) Hockey Explanation:

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प्र: Light from the sun reaches us in nearly 1849 05b5cc6a2e4d2b4197774cbc2

प्र: A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in evaluation ? 1848 05b5cc6c0e4d2b4197774dae4

उत्तर : 3. "84%" व्याख्या :Answer: C) 84% Explanation: Let the number be 'x' Then, according to the given data, 52x-25x52xx100 = 2125x100 = 84%

प्र: Metals are good conductors of electricity because 1848 05b5cc6a5e4d2b4197774ccd6

प्र: Which state government has launched “Mahaswayam portal” for job seekers and employers ? 1848 05b5cc6dae4d2b4197774e885

प्र: There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number ? 1848 05b5cc6dce4d2b4197774e974

उत्तर : 3. "13" व्याख्या :Answer: C) 13 Explanation: (385/1001) = 5/13 First Number is 5 => Fourth number is 13

प्र: A passenger train is moving at a speed of 120 km/hr. If the length of the train is 101 meters, how long will it take to cross a railway platform 154 meters long ? 1847 05b5cc6d3e4d2b4197774e540

उत्तर : 4. "7.65 sec" व्याख्या :Answer: D) 7.65 sec Explanation: Here total distance = 154 + 101 = 255 mtsGiven speed = 120 kmph = 120x5/18 m/secHence, Time = d/s = 255x18/120x5 = 7.65 sec

प्र: The probability that a number selected at random from the first 100 natural numbers is a composite number is ? 1846 05b5cc6e3e4d2b4197774ec8e

उत्तर : 1. "3/2" व्याख्या :Answer: A) 3/2 Explanation: The number of exhaustive events = 100 C₁ = 100. We have 25 primes from 1 to 100. Number of favourable cases are 75. Required probability = 75/50 = 3/2.

प्र: Agha khan cup is associated with 1845 05b5cc69de4d2b4197774c938

उत्तर : 4. "Hockey" व्याख्या :Answer: D) Hockey Explanation:

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

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प्र: Light from the sun reaches us in nearly 1849 0

प्र: A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in evaluation ? 1848 0

उत्तर : 3. "84%"
व्याख्या :
Answer: C) 84% Explanation: Let the number be 'x' Then, according to the given data, 52x-25x52xx100 = 2125x100 = 84%

प्र: Metals are good conductors of electricity because 1848 0

प्र: Which state government has launched “Mahaswayam portal” for job seekers and employers ? 1848 0

प्र: There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number ? 1848 0

उत्तर : 3. "13"
व्याख्या :
Answer: C) 13 Explanation: (385/1001) = 5/13 First Number is 5 => Fourth number is 13

प्र: A passenger train is moving at a speed of 120 km/hr. If the length of the train is 101 meters, how long will it take to cross a railway platform 154 meters long ? 1847 0

उत्तर : 4. "7.65 sec"
व्याख्या :
Answer: D) 7.65 sec Explanation: Here total distance = 154 + 101 = 255 mtsGiven speed = 120 kmph = 120x5/18 m/secHence, Time = d/s = 255x18/120x5 = 7.65 sec

प्र: The probability that a number selected at random from the first 100 natural numbers is a composite number is ? 1846 0

उत्तर : 1. "3/2"
व्याख्या :
Answer: A) 3/2 Explanation: The number of exhaustive events = 100 C₁ = 100. We have 25 primes from 1 to 100. Number of favourable cases are 75. Required probability = 75/50 = 3/2.

प्र: Agha khan cup is associated with 1845 0

उत्तर : 4. "Hockey"
व्याख्या :
Answer: D) Hockey Explanation: