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प्र: A number, when 35 is subtracted from it, reduces to its 80 percent. What is four - fifth of that number ? 1668 0

उत्तर : 2. "140"
व्याख्या :
Answer: B) 140 Explanation: x - 35 = 80x/100 => x = 175 => 4x/5 = 4x175/5 = 140.

प्र: How many seconds will a 600 m long train take to cross a man walking with a speed of 7 km/hr in the direction of the moving train if the speed of the train is 67 km/hr ? 1668 0

उत्तर : 3. "36 sec"
व्याख्या :
Answer: C) 36 sec Explanation: Speed of train relative to man = 67 - 7 = 60 km/hr.= 60 x 5/18 = 50/3 m/sec. Time taken to pass the man = 600 x 3/50 = 36 sec.

प्र: What will come in the place of the (?) in the following number series ? 5 14 45 130 (?) 1182 1667 0

उत्तर : 2. "397"
व्याख्या :
Answer: B) 397 Explanation: The pattern of given series is : 5 14 = (5x3) - 1 45 = (14x3) + 3 130 = (45x3) - 5 (?) = (130x3) + 7 => (?) = 397 1182 = (397x3) - 9 Thus, the missing number is 397.

प्र: In a vacuum, all electromagnetic waves have the same 1667 0

उत्तर : 1. "Velocity"
व्याख्या :
Answer: A) Velocity Explanation: When traveling in a vacuum, electronic waves from the electromagnetic spectrum all travel at the same speed. Velocity is speed with direction, so they would all travel at the same velocity, realtively speaking. But frequency and wavelength are quite different.

प्र: 12 days payment to the servant in a cloth showroom in festival season is Rs. 400 plus one shirt. The servant leaves after 9 days and recieves Rs. 280 and a shirt. What is the price of the shirt ? 1666 0

उत्तर : 1. "Rs. 80"
व्याख्या :
Answer: A) Rs. 80 Explanation: The servant worked for 9 days instead of 12 days, he should receive 9/12 of his total payment Let the price of 1 shirt be Rs. S i.e., 3/4 (400 + S). However, the question states that the servant receive Rs. 280 + S where S is the price of the shirt. By equating the two equations we get 3/4 (400 + S) = 280 + S. Therefore, Price of the shirt S = Rs. 80.

प्र: The cost price of 40 Magazines is the same as the selling price of 'P' articles. If the profit is 25%, then the value of 'P' is: 1666 0

उत्तर : 1. "32"
व्याख्या :
Answer: A) 32 Explanation: Let C.P. of each Magazine be Rs. 1 C.P. of P articles = Rs. P. S.P. of P articles = Rs. 40. Profit = Rs. (40 - P) Now, Gain% = ProfitC.P×100 = 40-PP×100 Here 40-PP×100= 25 -->P = 32.

प्र: A take twice as much time as B or thrice as much time to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in ? 1665 0

उत्तर : 3. "6 hrs"
व्याख्या :
Answer: C) 6 hrs Explanation: Suppose A, B and C take x, x/2 and x/3 respectively to finish the work. Then, (1/x + 2/x + 3/x) = 1/2 => 6/x = 1/2 => x = 12 So, B takes 6 hours to finish the work.

प्र: Poorly tuned engines do not get good gas mileage. 1664 0

उत्तर : 1. "TRUE"
व्याख्या :
Answer: A) TRUE Explanation: The above-given statement is absolutely true. Poorly tuned engines of vehicles will not get good gas mileage. A poorly running engine may lose power that is needed for normal driving and emergencies, may not start, gets poor fuel economy, pollutes the air, and could stall when you are on the road causing a traffic problem.

प्र: A number, when 35 is subtracted from it, reduces to its 80 percent. What is four - fifth of that number ? 1668 0

उत्तर : 2. "140"
व्याख्या :
Answer: B) 140 Explanation: x - 35 = 80x/100 => x = 175 => 4x/5 = 4x175/5 = 140.

प्र: How many seconds will a 600 m long train take to cross a man walking with a speed of 7 km/hr in the direction of the moving train if the speed of the train is 67 km/hr ? 1668 0

उत्तर : 3. "36 sec"
व्याख्या :
Answer: C) 36 sec Explanation: Speed of train relative to man = 67 - 7 = 60 km/hr.= 60 x 5/18 = 50/3 m/sec. Time taken to pass the man = 600 x 3/50 = 36 sec.

प्र: What will come in the place of the (?) in the following number series ? 5 14 45 130 (?) 1182 1667 0

उत्तर : 2. "397"
व्याख्या :
Answer: B) 397 Explanation: The pattern of given series is : 5 14 = (5x3) - 1 45 = (14x3) + 3 130 = (45x3) - 5 (?) = (130x3) + 7 => (?) = 397 1182 = (397x3) - 9 Thus, the missing number is 397.

प्र: In a vacuum, all electromagnetic waves have the same 1667 0

प्र: 12 days payment to the servant in a cloth showroom in festival season is Rs. 400 plus one shirt. The servant leaves after 9 days and recieves Rs. 280 and a shirt. What is the price of the shirt ? 1666 0

प्र: The cost price of 40 Magazines is the same as the selling price of 'P' articles. If the profit is 25%, then the value of 'P' is: 1666 0

उत्तर : 1. "32"
व्याख्या :
Answer: A) 32 Explanation: Let C.P. of each Magazine be Rs. 1 C.P. of P articles = Rs. P. S.P. of P articles = Rs. 40. Profit = Rs. (40 - P) Now, Gain% = ProfitC.P×100 = 40-PP×100 Here 40-PP×100= 25 -->P = 32.

प्र: A take twice as much time as B or thrice as much time to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in ? 1665 0

उत्तर : 3. "6 hrs"
व्याख्या :
Answer: C) 6 hrs Explanation: Suppose A, B and C take x, x/2 and x/3 respectively to finish the work. Then, (1/x + 2/x + 3/x) = 1/2 => 6/x = 1/2 => x = 12 So, B takes 6 hours to finish the work.

प्र: Poorly tuned engines do not get good gas mileage. 1664 0

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त्रुटि की रिपोर्ट करें

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प्र: A number, when 35 is subtracted from it, reduces to its 80 percent. What is four - fifth of that number ? 1668 05b5cc6dee4d2b4197774ea4b

उत्तर : 2. "140" व्याख्या :Answer: B) 140 Explanation: x - 35 = 80x/100 => x = 175 => 4x/5 = 4x175/5 = 140.

प्र: How many seconds will a 600 m long train take to cross a man walking with a speed of 7 km/hr in the direction of the moving train if the speed of the train is 67 km/hr ? 1668 05b5cc6dfe4d2b4197774eb20

उत्तर : 3. "36 sec" व्याख्या :Answer: C) 36 sec Explanation: Speed of train relative to man = 67 - 7 = 60 km/hr.= 60 x 5/18 = 50/3 m/sec. Time taken to pass the man = 600 x 3/50 = 36 sec.

प्र: What will come in the place of the (?) in the following number series ? 5 14 45 130 (?) 1182 1667 05b5cc6cae4d2b4197774e095

उत्तर : 2. "397" व्याख्या :Answer: B) 397 Explanation: The pattern of given series is : 5 14 = (5x3) - 1 45 = (14x3) + 3 130 = (45x3) - 5 (?) = (130x3) + 7 => (?) = 397 1182 = (397x3) - 9 Thus, the missing number is 397.

प्र: In a vacuum, all electromagnetic waves have the same 1667 05b5cc63de4d2b4197774bb0a

प्र: 12 days payment to the servant in a cloth showroom in festival season is Rs. 400 plus one shirt. The servant leaves after 9 days and recieves Rs. 280 and a shirt. What is the price of the shirt ? 1666 05b5cc6d0e4d2b4197774e380

प्र: The cost price of 40 Magazines is the same as the selling price of 'P' articles. If the profit is 25%, then the value of 'P' is: 1666 05b5cc76ae4d2b4197774fe4f

उत्तर : 1. "32" व्याख्या :Answer: A) 32 Explanation: Let C.P. of each Magazine be Rs. 1 C.P. of P articles = Rs. P. S.P. of P articles = Rs. 40. Profit = Rs. (40 - P) Now, Gain% = ProfitC.P×100 = 40-PP×100 Here 40-PP×100= 25 -->P = 32.

प्र: A take twice as much time as B or thrice as much time to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in ? 1665 05b5cc6dbe4d2b4197774e927

उत्तर : 3. "6 hrs" व्याख्या :Answer: C) 6 hrs Explanation: Suppose A, B and C take x, x/2 and x/3 respectively to finish the work. Then, (1/x + 2/x + 3/x) = 1/2 => 6/x = 1/2 => x = 12 So, B takes 6 hours to finish the work.

प्र: Poorly tuned engines do not get good gas mileage. 1664 05b5cc6a1e4d2b4197774cb0d

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 number, when 35 is subtracted from it, reduces to its 80 percent. What is four - fifth of that number ? 1668 0

उत्तर : 2. "140"
व्याख्या :
Answer: B) 140 Explanation: x - 35 = 80x/100 => x = 175 => 4x/5 = 4x175/5 = 140.

प्र: How many seconds will a 600 m long train take to cross a man walking with a speed of 7 km/hr in the direction of the moving train if the speed of the train is 67 km/hr ? 1668 0

उत्तर : 3. "36 sec"
व्याख्या :
Answer: C) 36 sec Explanation: Speed of train relative to man = 67 - 7 = 60 km/hr.= 60 x 5/18 = 50/3 m/sec. Time taken to pass the man = 600 x 3/50 = 36 sec.

प्र: What will come in the place of the (?) in the following number series ? 5 14 45 130 (?) 1182 1667 0

उत्तर : 2. "397"
व्याख्या :
Answer: B) 397 Explanation: The pattern of given series is : 5 14 = (5x3) - 1 45 = (14x3) + 3 130 = (45x3) - 5 (?) = (130x3) + 7 => (?) = 397 1182 = (397x3) - 9 Thus, the missing number is 397.

प्र: In a vacuum, all electromagnetic waves have the same 1667 0

प्र: 12 days payment to the servant in a cloth showroom in festival season is Rs. 400 plus one shirt. The servant leaves after 9 days and recieves Rs. 280 and a shirt. What is the price of the shirt ? 1666 0

प्र: The cost price of 40 Magazines is the same as the selling price of 'P' articles. If the profit is 25%, then the value of 'P' is: 1666 0

उत्तर : 1. "32"
व्याख्या :
Answer: A) 32 Explanation: Let C.P. of each Magazine be Rs. 1 C.P. of P articles = Rs. P. S.P. of P articles = Rs. 40. Profit = Rs. (40 - P) Now, Gain% = ProfitC.P×100 = 40-PP×100 Here 40-PP×100= 25 -->P = 32.

प्र: A take twice as much time as B or thrice as much time to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in ? 1665 0

उत्तर : 3. "6 hrs"
व्याख्या :
Answer: C) 6 hrs Explanation: Suppose A, B and C take x, x/2 and x/3 respectively to finish the work. Then, (1/x + 2/x + 3/x) = 1/2 => 6/x = 1/2 => x = 12 So, B takes 6 hours to finish the work.

प्र: Poorly tuned engines do not get good gas mileage. 1664 0