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प्र: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 1902 0

उत्तर : 2. "29.39 cm"
व्याख्या :
Answer: B) 29.39 cm Explanation: Volume of water flowing through 1 pipe of diameter x = Volume discharged by 6 pipes of diameter 12 cms. As speed is same, area of cross sections should be same. Area of bigger pipe of diameter x = Total area of 6 smaller pipes of diameter 12 i.e πR2 = 6πR12 Here R = R and R1 = 12/2 = 6 ⇒R2 = 6×6×6 R = 14.696 => D = X = 14.696 * 2 = 29.3938 cm.

प्र: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ? 1898 0

उत्तर : 3. "5"
व्याख्या :
Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1) But (3x + 2)(2x - 5) = 6x2-11x-10........(2) so by comparing (1) & (2), we get a= 6, k= -11 , n= -10 (a - n + k) = 6 + 10 - 11 = 5.

प्र: One girl can eat 112 chocolates in half a minute, and her boy friend can eat half as many in twice the length of time. How many chocolates can both boy and girl eat in 12 seconds ? 1895 0

उत्तर : 3. "56"
व्याख्या :
Answer: C) 56 Explanation: Girl eats 112 chocolates in 30 sec so she can eat in 12 sec is 12 x 112/30 = 44.8 chocolates. Her boy friend can eat one-half of 112 in twice of 30 sec so he can eat 56 in 60 sec Then he can eat in 12 sec is 56 x 12/60 = 11.2 chocolates. Hence, together they can eat = 44.8 + 11.2 =56 chocolates in 12 seconds.

प्र: If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain ? 1893 0

उत्तर : 1. "25%"
व्याख्या :
Answer: A) 25% Explanation: He has gain = 15 - 12 = 3,Gain% = (3/12) x 100 = (100/4) = 25.He has 25% gain.

प्र: What is the first step in Photosynthesis? 1893 1

उत्तर : 4. "Excitement of an electron of chlorophyll photon of light"
व्याख्या :
Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

प्र: Choose apropriate words which gives a complete meaning to the sentence from the given options. we were thinking it _ something like a requiem for our age. 1888 0

उत्तर : 3. "of, as"
व्याख्या :
Answer: C) of, as Explanation:

प्र: If Theresa's daughter is my daughter's mother, what am I to Theresa? 1884 0

उत्तर : 1. "Son-in-law"
व्याख्या :
Answer: A) Son-in-law Explanation: Given that If Theresa's daughter is my daughter's mother It has 2 ways of Answers such that it depends on the sex of me. That is Male or Female. 1) If I am a Male : My daughter's mother is my wife. My wife is Teresa's daughter => I am Teresa's Son-in-law. 2) If I am a Female : My daughter's mother is myself. Myself Teresa's daughter. => I am Teresa's Daughter. But in the given options only Son-in-law is available and daughter is not given. So, Son-in-law is correct.

प्र: On a school’s Annual day sweets were to be equally distributed amongst 112 children. But on that particular day, 32 children were absent. Thus the remaining children got 6 extra sweets. How many sweets was each child originally supposed to get ? 1884 0

उत्तर : 4. "15"
व्याख्या :
Answer: D) 15 Explanation: Let 'K' be the total number of sweets.Given total number of students = 112If sweets are distributed among 112 children,Let number of sweets each student gets = 'L' => K/112 = L ....(1)But on that day students absent = 32 => remaining = 112 - 32 = 80Then, each student gets '6' sweets extra. => K/80 = L + 6 ....(2)from (1) K = 112L substitute in (2), we get112L = 80L + 48032L = 480L = 15 Therefore, 15 sweets were each student originally supposed to get.

प्र: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 1902 0

प्र: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ? 1898 0

उत्तर : 3. "5"
व्याख्या :
Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1) But (3x + 2)(2x - 5) = 6x2-11x-10........(2) so by comparing (1) & (2), we get a= 6, k= -11 , n= -10 (a - n + k) = 6 + 10 - 11 = 5.

प्र: One girl can eat 112 chocolates in half a minute, and her boy friend can eat half as many in twice the length of time. How many chocolates can both boy and girl eat in 12 seconds ? 1895 0

प्र: If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain ? 1893 0

उत्तर : 1. "25%"
व्याख्या :
Answer: A) 25% Explanation: He has gain = 15 - 12 = 3,Gain% = (3/12) x 100 = (100/4) = 25.He has 25% gain.

प्र: What is the first step in Photosynthesis? 1893 1

उत्तर : 4. "Excitement of an electron of chlorophyll photon of light"
व्याख्या :
Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

प्र: Choose apropriate words which gives a complete meaning to the sentence from the given options. we were thinking it _ something like a requiem for our age. 1888 0

उत्तर : 3. "of, as"
व्याख्या :
Answer: C) of, as Explanation:

प्र: If Theresa's daughter is my daughter's mother, what am I to Theresa? 1884 0

प्र: On a school’s Annual day sweets were to be equally distributed amongst 112 children. But on that particular day, 32 children were absent. Thus the remaining children got 6 extra sweets. How many sweets was each child originally supposed to get ? 1884 0

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प्र: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 1902 05b5cc73ae4d2b4197774f902

प्र: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ? 1898 05b5cc74fe4d2b4197774fafe

उत्तर : 3. "5" व्याख्या :Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1) But (3x + 2)(2x - 5) = 6x2-11x-10........(2) so by comparing (1) & (2), we get a= 6, k= -11 , n= -10 (a - n + k) = 6 + 10 - 11 = 5.

प्र: One girl can eat 112 chocolates in half a minute, and her boy friend can eat half as many in twice the length of time. How many chocolates can both boy and girl eat in 12 seconds ? 1895 05b5cc745e4d2b4197774fa27

प्र: If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain ? 1893 05b5cc74fe4d2b4197774fb12

उत्तर : 1. "25%" व्याख्या :Answer: A) 25% Explanation: He has gain = 15 - 12 = 3,Gain% = (3/12) x 100 = (100/4) = 25.He has 25% gain.

प्र: What is the first step in Photosynthesis? 1893 15b5cc6a9e4d2b4197774cf0f

उत्तर : 4. "Excitement of an electron of chlorophyll photon of light" व्याख्या :Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

प्र: Choose apropriate words which gives a complete meaning to the sentence from the given options. we were thinking ______ it _______ something like a requiem for our age. 1888 05b5cc741e4d2b4197774f9c7

उत्तर : 3. "of, as" व्याख्या :Answer: C) of, as Explanation:

प्र: If Theresa's daughter is my daughter's mother, what am I to Theresa? 1884 05b5cc6ade4d2b4197774d0e4

प्र: On a school’s Annual day sweets were to be equally distributed amongst 112 children. But on that particular day, 32 children were absent. Thus the remaining children got 6 extra sweets. How many sweets was each child originally supposed to get ? 1884 05b5cc741e4d2b4197774f9a4

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: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 1902 0

प्र: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ? 1898 0

उत्तर : 3. "5"
व्याख्या :
Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1) But (3x + 2)(2x - 5) = 6x2-11x-10........(2) so by comparing (1) & (2), we get a= 6, k= -11 , n= -10 (a - n + k) = 6 + 10 - 11 = 5.

प्र: One girl can eat 112 chocolates in half a minute, and her boy friend can eat half as many in twice the length of time. How many chocolates can both boy and girl eat in 12 seconds ? 1895 0

प्र: If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain ? 1893 0

उत्तर : 1. "25%"
व्याख्या :
Answer: A) 25% Explanation: He has gain = 15 - 12 = 3,Gain% = (3/12) x 100 = (100/4) = 25.He has 25% gain.

प्र: What is the first step in Photosynthesis? 1893 1

उत्तर : 4. "Excitement of an electron of chlorophyll photon of light"
व्याख्या :
Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

प्र: Choose apropriate words which gives a complete meaning to the sentence from the given options. we were thinking it _ something like a requiem for our age. 1888 0

उत्तर : 3. "of, as"
व्याख्या :
Answer: C) of, as Explanation:

प्र: If Theresa's daughter is my daughter's mother, what am I to Theresa? 1884 0

प्र: On a school’s Annual day sweets were to be equally distributed amongst 112 children. But on that particular day, 32 children were absent. Thus the remaining children got 6 extra sweets. How many sweets was each child originally supposed to get ? 1884 0