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प्र: Evaluate : 3.392-2.6123.39-2.69? 1527 0

उत्तर : 3. "6"
व्याख्या :
Answer: C) 6 Explanation: It is in the form of a2-b2a-b = a+ba-ba-b = a+b Here a = 3.39 b = 2.61 = 3.39 + 2.61 = 6.

प्र: At a game of billiards, A can give B 20 points in 60 and A can give C 15 points in 60. How many points can C give B in a game of 90 ? 1526 0

उत्तर : 2. "10 points"
व्याख्या :
Answer: B) 10 points Explanation: a:b = 60:40a:c = 60:45c/a x a/b = 45/60 x 60/40 = 45/40 = 90/80So C gives B => 10 points.

प्र: A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent ? 1526 0

उत्तर : 1. "10 days"
व्याख्या :
Answer: A) 10 days Explanation: For 30 days he receives 30 x 25 = 750 Actually he gets 425 Therefore, Fine is 750 - 425 = 325 => No of days absent = 325/(25+7.50)= 10

प्र: In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by ? 1526 0

उत्तर : 1. "25 m"
व्याख्या :
Answer: A) 25 m Explanation: A:B = 200 : 169A:C = 200 : 182 CB = CA×AB 182200×200169 => 182:169 When C covers 182 m , B Covers 169 mWhen C covers 350 m , B Covers 169182×350=> 325 m So C beats B by (350 - 325) = 25 m.

प्र: 5/8 as a Decimal Equals To 1526 0

उत्तर : 1. "0.625"
व्याख्या :
Answer: A) 0.625 Explanation: 5/8 is Nothing but to divide 5 into 8 parts. As 5 is smaller than 8, the quotient starts with a decimal point to make 5 as 50 to be divisible by 8. (0.) Now 50 goes for 6 times in 8 leaving a remainder 2. (0.6) Again 2 is smaller than 8, As it already has decimal point in the quotient, now 2 becomes 20. Now 20 goes for 2 times in 8 leaving a remainder 4. (0.62) Again 4 is smaller than 8, As it already has decimal point in the quotient, now 4 becomes 40. Now 40 goes for 5 times in 8 leaving a remainder 0. (0.625) Therefore, the decimal value of 58 is 0.625. Now find a decimal value of 1117 and Discuss your at Discuss.

प्र: Which was the first Hydel power projects in India? 1526 0

उत्तर : 3. "Siva Samudram in Karnataka"
व्याख्या :
Answer: C) Siva Samudram in Karnataka Explanation: Siva Samudram in Karnatka. The potential for hydroelectric power in India is one of the greatest in the world. The first hydro-electric power station in India was established in Karnataka at "shivana samudra".

प्र: In how many different ways can the letters of the word 'ABYSMAL' be arranged ? 1526 0

उत्तर : 4. "2520"
व्याख्या :
Answer: D) 2520 Explanation: Total number of letters in the word ABYSMAL are 7 Number of ways these 7 letters can be arranged are 7! ways But the letter is repeated and this can be arranged in 2! ways Total number of ways arranging ABYSMAL = 7!/2! = 5040/2 = 2520 ways.

प्र: How many valence electrons are in carbon? 1525 0

उत्तर : 2. "4"
व्याख्या :
Answer: B) 4 Explanation: The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

प्र: Evaluate : 3.392-2.6123.39-2.69? 1527 0

उत्तर : 3. "6"
व्याख्या :
Answer: C) 6 Explanation: It is in the form of a2-b2a-b = a+ba-ba-b = a+b Here a = 3.39 b = 2.61 = 3.39 + 2.61 = 6.

प्र: At a game of billiards, A can give B 20 points in 60 and A can give C 15 points in 60. How many points can C give B in a game of 90 ? 1526 0

उत्तर : 2. "10 points"
व्याख्या :
Answer: B) 10 points Explanation: a:b = 60:40a:c = 60:45c/a x a/b = 45/60 x 60/40 = 45/40 = 90/80So C gives B => 10 points.

प्र: A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent ? 1526 0

उत्तर : 1. "10 days"
व्याख्या :
Answer: A) 10 days Explanation: For 30 days he receives 30 x 25 = 750 Actually he gets 425 Therefore, Fine is 750 - 425 = 325 => No of days absent = 325/(25+7.50)= 10

प्र: In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by ? 1526 0

उत्तर : 1. "25 m"
व्याख्या :
Answer: A) 25 m Explanation: A:B = 200 : 169A:C = 200 : 182 CB = CA×AB 182200×200169 => 182:169 When C covers 182 m , B Covers 169 mWhen C covers 350 m , B Covers 169182×350=> 325 m So C beats B by (350 - 325) = 25 m.

प्र: 5/8 as a Decimal Equals To 1526 0

प्र: Which was the first Hydel power projects in India? 1526 0

प्र: In how many different ways can the letters of the word 'ABYSMAL' be arranged ? 1526 0

प्र: How many valence electrons are in carbon? 1525 0

उत्तर : 2. "4"
व्याख्या :
Answer: B) 4 Explanation: The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

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प्र: Evaluate : 3.392-2.6123.39-2.69? 1527 05b5cc728e4d2b4197774f700

उत्तर : 3. "6" व्याख्या :Answer: C) 6 Explanation: It is in the form of a2-b2a-b = a+ba-ba-b = a+b Here a = 3.39 b = 2.61 = 3.39 + 2.61 = 6.

प्र: At a game of billiards, A can give B 20 points in 60 and A can give C 15 points in 60. How many points can C give B in a game of 90 ? 1526 05b5cc723e4d2b4197774f69a

उत्तर : 2. "10 points" व्याख्या :Answer: B) 10 points Explanation: a:b = 60:40a:c = 60:45c/a x a/b = 45/60 x 60/40 = 45/40 = 90/80So C gives B => 10 points.

प्र: A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent ? 1526 05b5cc6dfe4d2b4197774ead0

उत्तर : 1. "10 days" व्याख्या :Answer: A) 10 days Explanation: For 30 days he receives 30 x 25 = 750 Actually he gets 425 Therefore, Fine is 750 - 425 = 325 => No of days absent = 325/(25+7.50)= 10

प्र: In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by ? 1526 05b5cc74fe4d2b4197774faf4

उत्तर : 1. "25 m" व्याख्या :Answer: A) 25 m Explanation: A:B = 200 : 169A:C = 200 : 182 CB = CA×AB 182200×200169 => 182:169 When C covers 182 m , B Covers 169 mWhen C covers 350 m , B Covers 169182×350=> 325 m So C beats B by (350 - 325) = 25 m.

प्र: 5/8 as a Decimal Equals To 1526 05b5cc6b6e4d2b4197774d5c3

प्र: Which was the first Hydel power projects in India? 1526 05b5cc611e4d2b4197774b66a

प्र: In how many different ways can the letters of the word 'ABYSMAL' be arranged ? 1526 05b5cc6c9e4d2b4197774df88

प्र: How many valence electrons are in carbon? 1525 05b5cc6a6e4d2b4197774cd4c

उत्तर : 2. "4" व्याख्या :Answer: B) 4 Explanation: The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

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त्रुटि की रिपोर्ट करें

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प्र: Evaluate : 3.392-2.6123.39-2.69? 1527 0

उत्तर : 3. "6"
व्याख्या :
Answer: C) 6 Explanation: It is in the form of a2-b2a-b = a+ba-ba-b = a+b Here a = 3.39 b = 2.61 = 3.39 + 2.61 = 6.

प्र: At a game of billiards, A can give B 20 points in 60 and A can give C 15 points in 60. How many points can C give B in a game of 90 ? 1526 0

उत्तर : 2. "10 points"
व्याख्या :
Answer: B) 10 points Explanation: a:b = 60:40a:c = 60:45c/a x a/b = 45/60 x 60/40 = 45/40 = 90/80So C gives B => 10 points.

प्र: A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent ? 1526 0

उत्तर : 1. "10 days"
व्याख्या :
Answer: A) 10 days Explanation: For 30 days he receives 30 x 25 = 750 Actually he gets 425 Therefore, Fine is 750 - 425 = 325 => No of days absent = 325/(25+7.50)= 10

प्र: In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by ? 1526 0

उत्तर : 1. "25 m"
व्याख्या :
Answer: A) 25 m Explanation: A:B = 200 : 169A:C = 200 : 182 CB = CA×AB 182200×200169 => 182:169 When C covers 182 m , B Covers 169 mWhen C covers 350 m , B Covers 169182×350=> 325 m So C beats B by (350 - 325) = 25 m.

प्र: 5/8 as a Decimal Equals To 1526 0

प्र: Which was the first Hydel power projects in India? 1526 0

प्र: In how many different ways can the letters of the word 'ABYSMAL' be arranged ? 1526 0

प्र: How many valence electrons are in carbon? 1525 0

उत्तर : 2. "4"
व्याख्या :
Answer: B) 4 Explanation: The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.