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प्र: What should come in place of the question mark(?) in the following questions ? 316 + 412 - 223 - 11112 = ? 1965 0

उत्तर : 4. "3 1/12"
व्याख्या :
Answer: D) 3 1/12 Explanation: ? = (3 + 4 - 2 - 1) + ( 1/6 + 1/2 - 2/3 - 11/12) = 4 + [(2+6-8-11)/12] = 4 - (11/12 )= 31/12.

प्र: A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in ? 1965 0

उत्तर : 1. "20 hrs"
व्याख्या :
Answer: A) 20 hrs Explanation: 1/8 - 1/x = 1/10 => x = 40 hrs

प्र: Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank ? 1964 0

उत्तर : 4. "14 min 40 sec."
व्याख्या :
Answer: D) 14 min 40 sec. Explanation: Part filled in 4 minutes = 4(1/15 + 1/20) = 7/15 Remaining part = 1 - 7/15 = 8/15 Part filled by B in 1 minute = 1/20 1/20 : 8/15 :: 1 : k k = (8/15 )x 1 x 20 = 10( 2/3) min = 10 min 40 sec. The tank will be full in (4 min. + 10 min. 40 sec) = 14 min 40 sec.

प्र: Virus doubles every 3 mins. It is 'K' in 1 hour, when was it K/4 ? 1964 0

उत्तर : 3. "54 min"
व्याख्या :
Answer: C) 54 min Explanation: If virus is K in 1hr i.e 60 minthen in 57 min it was K/2 as it doubles every 3 minutes=> In 54 min it was K/4.At 54 minutes it was K/4.

प्र: The first country to make a constitution 1962 0

उत्तर : 2. "United States"
व्याख्या :
Answer: B) United States Explanation: The United States Constitution, ratified June 21, 1788, was influenced by the writings of Polybius, Locke, Montesquieu, and others. The document became a benchmark for republicanism and codified constitutions written thereafter. The Polish–Lithuanian Commonwealth Constitution was passed on May 3, 1791.

प्र: Which of these is an example of negative feedback? 1962 0

उत्तर : 1. "After you eat, insulin stimulates the lowering of blood sugar levels."
व्याख्या :
Answer: A) After you eat, insulin stimulates the lowering of blood sugar levels. Explanation: Eating raises blood sugar levels, insulin stimulates the lowering of blood sugar level. In this example the response to the stimulus (increased blood sugar levels) opposes that stimulus (by lowering blood sugar levels).

प्र: How can investors receive compounding returns? 1961 0

उत्तर : 1. "By investing their earnings back into their original investment"
व्याख्या :
Answer: A) By investing their earnings back into their original investment Explanation:

प्र: What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ? 1960 0

उत्तर : 3. "7 hrs 30 min"
व्याख्या :
Answer: C) 7 hrs 30 min Explanation: Total number of cards = 1500total columns = 45so, total punches=1500 x 45 = 67500for 1 hour if we make 9000 punches, we require 67500/9000 = 7.5so 7hours:30mins.

प्र: What should come in place of the question mark(?) in the following questions ? 316 + 412 - 223 - 11112 = ? 1965 0

उत्तर : 4. "3 1/12"
व्याख्या :
Answer: D) 3 1/12 Explanation: ? = (3 + 4 - 2 - 1) + ( 1/6 + 1/2 - 2/3 - 11/12) = 4 + [(2+6-8-11)/12] = 4 - (11/12 )= 31/12.

प्र: A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in ? 1965 0

उत्तर : 1. "20 hrs"
व्याख्या :
Answer: A) 20 hrs Explanation: 1/8 - 1/x = 1/10 => x = 40 hrs

प्र: Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank ? 1964 0

प्र: Virus doubles every 3 mins. It is 'K' in 1 hour, when was it K/4 ? 1964 0

उत्तर : 3. "54 min"
व्याख्या :
Answer: C) 54 min Explanation: If virus is K in 1hr i.e 60 minthen in 57 min it was K/2 as it doubles every 3 minutes=> In 54 min it was K/4.At 54 minutes it was K/4.

प्र: The first country to make a constitution 1962 0

प्र: Which of these is an example of negative feedback? 1962 0

प्र: How can investors receive compounding returns? 1961 0

उत्तर : 1. "By investing their earnings back into their original investment"
व्याख्या :
Answer: A) By investing their earnings back into their original investment Explanation:

प्र: What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ? 1960 0

उत्तर : 3. "7 hrs 30 min"
व्याख्या :
Answer: C) 7 hrs 30 min Explanation: Total number of cards = 1500total columns = 45so, total punches=1500 x 45 = 67500for 1 hour if we make 9000 punches, we require 67500/9000 = 7.5so 7hours:30mins.

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प्र: What should come in place of the question mark(?) in the following questions ? 316 + 412 - 223 - 11112 = ? 1965 05b5cc6fbe4d2b4197774f0ec

उत्तर : 4. "3 1/12" व्याख्या :Answer: D) 3 1/12 Explanation: ? = (3 + 4 - 2 - 1) + ( 1/6 + 1/2 - 2/3 - 11/12) = 4 + [(2+6-8-11)/12] = 4 - (11/12 )= 31/12.

प्र: A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in ? 1965 05b5cc6e5e4d2b4197774ed2e

उत्तर : 1. "20 hrs" व्याख्या :Answer: A) 20 hrs Explanation: 1/8 - 1/x = 1/10 => x = 40 hrs

प्र: Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank ? 1964 05b5cc6e0e4d2b4197774eb48

प्र: Virus doubles every 3 mins. It is 'K' in 1 hour, when was it K/4 ? 1964 05b5cc711e4d2b4197774f3a3

उत्तर : 3. "54 min" व्याख्या :Answer: C) 54 min Explanation: If virus is K in 1hr i.e 60 minthen in 57 min it was K/2 as it doubles every 3 minutes=> In 54 min it was K/4.At 54 minutes it was K/4.

प्र: The first country to make a constitution 1962 05b5cc69ee4d2b4197774c965

प्र: Which of these is an example of negative feedback? 1962 05b5cc62ce4d2b4197774b93e

प्र: How can investors receive compounding returns? 1961 05b5cc688e4d2b4197774c2ff

उत्तर : 1. "By investing their earnings back into their original investment" व्याख्या :Answer: A) By investing their earnings back into their original investment Explanation:

प्र: What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ? 1960 05b5cc711e4d2b4197774f3e1

उत्तर : 3. "7 hrs 30 min" व्याख्या :Answer: C) 7 hrs 30 min Explanation: Total number of cards = 1500total columns = 45so, total punches=1500 x 45 = 67500for 1 hour if we make 9000 punches, we require 67500/9000 = 7.5so 7hours:30mins.

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

प्र: What should come in place of the question mark(?) in the following questions ? 316 + 412 - 223 - 11112 = ? 1965 0

उत्तर : 4. "3 1/12"
व्याख्या :
Answer: D) 3 1/12 Explanation: ? = (3 + 4 - 2 - 1) + ( 1/6 + 1/2 - 2/3 - 11/12) = 4 + [(2+6-8-11)/12] = 4 - (11/12 )= 31/12.

प्र: A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in ? 1965 0

उत्तर : 1. "20 hrs"
व्याख्या :
Answer: A) 20 hrs Explanation: 1/8 - 1/x = 1/10 => x = 40 hrs

प्र: Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank ? 1964 0

प्र: Virus doubles every 3 mins. It is 'K' in 1 hour, when was it K/4 ? 1964 0

उत्तर : 3. "54 min"
व्याख्या :
Answer: C) 54 min Explanation: If virus is K in 1hr i.e 60 minthen in 57 min it was K/2 as it doubles every 3 minutes=> In 54 min it was K/4.At 54 minutes it was K/4.

प्र: The first country to make a constitution 1962 0

प्र: Which of these is an example of negative feedback? 1962 0

प्र: How can investors receive compounding returns? 1961 0

उत्तर : 1. "By investing their earnings back into their original investment"
व्याख्या :
Answer: A) By investing their earnings back into their original investment Explanation:

प्र: What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ? 1960 0

उत्तर : 3. "7 hrs 30 min"
व्याख्या :
Answer: C) 7 hrs 30 min Explanation: Total number of cards = 1500total columns = 45so, total punches=1500 x 45 = 67500for 1 hour if we make 9000 punches, we require 67500/9000 = 7.5so 7hours:30mins.