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प्र: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other ? 1865 0

उत्तर : 4. "3:16 4/11"
व्याख्या :
Answer: D) 3:16 4/11 Explanation: Coincide means 00 angle. This can be calculated using the formulafor time A to B means [11m/2 - 30 (A)] Here m gives minutes after A the both hands coincides. Here A = 3, B = 4 0 =11m/2 –30 × 311m = 90 × 2 = 180m= 180/11 = 16 4/11 So time = 3 : 16 4/11

प्र: How many degrees will the minute hand move, in the same time in which the second hand move 4800 ? 6220 0

उत्तर : 1. "80 deg"
व्याख्या :
Answer: A) 80 deg Explanation: As minute hand covers, 60 degrees Minute hand covers 4800/60 = 80°

प्र: P alone can complete a piece of work in 6 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together ? 2854 0

उत्तर : 3. "4 (1/2)"
व्याख्या :
Answer: C) 4 (1/2) Explanation: Work done by P alone in one day = 1/6th of the total work done by Q alone in one day = 1/3(of that done by P in one day) = 1/3(1/6 of the total) = 1/18 of the total. Work done by P and Q, working together in one day = 1/6 + 1/18 = 4/18 = 2/9 They would take 9/2 days = 4 (1/2) days to complete the work working together.

प्र: If a trader sold two cars each at Rs. 404415 and gains 15% on the first and loses 15% on the second, then his profit or loss percent on the whole is ? 1957 0

उत्तर : 4. "2.25 %"
व्याख्या :
Answer: D) 2.25 % Explanation: SP of each car is Rs. 404415, he gains 15% on first car and losses 15% on second car. In this case, there will be loss and percentage of loss is given by = [(profit%)(loss%)]/100 = (15)(15)/100 % = 2.25%

प्र: A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and back. What is the total distance traveled by the man ? 2344 0

उत्तर : 3. "5.76 kms"
व्याख्या :
Answer: C) 5.76 kms Explanation: Speed in still water = 6 kmph Stream speed = 1.2 kmph Down stream = 7.2 kmph Up Stream = 4.8 kmph x/7.2 + x/4.8 = 1 x = 2.88 Total Distance = 2.88 x 2 = 5.76 kms

प्र: How many minutes does a watch lose per day, if its hands coincide every 64 minutes ? 1196 0

उत्तर : 2. "32 8/11 min"
व्याख्या :
Answer: B) 32 8/11 min Explanation: 55 min. spaces are covered in 60 min. 60 min. spaces are covered in min. = min. Loss in 64 min. = min. Loss in 24 hrs = min. = min.

प्र: Find the least number by which 175760 be divided to make it a perfect cube. 3858 0

उत्तर : 2. "10"
व्याख्या :
Answer: B) 10 Explanation: 175760 =2³ x 2 x 5 x 13³= 2³ x 2 x 5 x 13³ To make perfect cube, it must be divided by 2 x 5 = 10

प्र: How many four digit even numbers can be formed using the digits {2, 7, 5, 3, 9, 1} ? 2517 0

उत्तर : 2. "60"
व्याख्या :
Answer: B) 60 Explanation: The given digits are 1, 2, 3, 5, 7, 9 A number is even when its units digit is even. Of the given digits, two is the only even digit.Units place is filled with only '2' and the remaining three places can be filled in ⁵P₃ ways. Number of even numbers = ⁵P₃ = 60.

प्र: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other ? 1865 0

प्र: How many degrees will the minute hand move, in the same time in which the second hand move 4800 ? 6220 0

उत्तर : 1. "80 deg"
व्याख्या :
Answer: A) 80 deg Explanation: As minute hand covers, 60 degrees Minute hand covers 4800/60 = 80°

प्र: P alone can complete a piece of work in 6 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together ? 2854 0

प्र: If a trader sold two cars each at Rs. 404415 and gains 15% on the first and loses 15% on the second, then his profit or loss percent on the whole is ? 1957 0

उत्तर : 4. "2.25 %"
व्याख्या :
Answer: D) 2.25 % Explanation: SP of each car is Rs. 404415, he gains 15% on first car and losses 15% on second car. In this case, there will be loss and percentage of loss is given by = [(profit%)(loss%)]/100 = (15)(15)/100 % = 2.25%

प्र: A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and back. What is the total distance traveled by the man ? 2344 0

उत्तर : 3. "5.76 kms"
व्याख्या :
Answer: C) 5.76 kms Explanation: Speed in still water = 6 kmph Stream speed = 1.2 kmph Down stream = 7.2 kmph Up Stream = 4.8 kmph x/7.2 + x/4.8 = 1 x = 2.88 Total Distance = 2.88 x 2 = 5.76 kms

प्र: How many minutes does a watch lose per day, if its hands coincide every 64 minutes ? 1196 0

उत्तर : 2. "32 8/11 min"
व्याख्या :
Answer: B) 32 8/11 min Explanation: 55 min. spaces are covered in 60 min. 60 min. spaces are covered in min. = min. Loss in 64 min. = min. Loss in 24 hrs = min. = min.

प्र: Find the least number by which 175760 be divided to make it a perfect cube. 3858 0

उत्तर : 2. "10"
व्याख्या :
Answer: B) 10 Explanation: 175760 =2³ x 2 x 5 x 13³= 2³ x 2 x 5 x 13³ To make perfect cube, it must be divided by 2 x 5 = 10

प्र: How many four digit even numbers can be formed using the digits {2, 7, 5, 3, 9, 1} ? 2517 0

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प्र: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other ? 1865 05b5cc6d8e4d2b4197774e74b

प्र: How many degrees will the minute hand move, in the same time in which the second hand move 4800 ? 6220 05b5cc6d8e4d2b4197774e746

उत्तर : 1. "80 deg" व्याख्या :Answer: A) 80 deg Explanation: As minute hand covers, 60 degrees Minute hand covers 4800/60 = 80°

प्र: P alone can complete a piece of work in 6 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together ? 2854 05b5cc6d8e4d2b4197774e737

प्र: If a trader sold two cars each at Rs. 404415 and gains 15% on the first and loses 15% on the second, then his profit or loss percent on the whole is ? 1957 05b5cc6d8e4d2b4197774e732

उत्तर : 4. "2.25 %" व्याख्या :Answer: D) 2.25 % Explanation: SP of each car is Rs. 404415, he gains 15% on first car and losses 15% on second car. In this case, there will be loss and percentage of loss is given by = [(profit%)(loss%)]/100 = (15)(15)/100 % = 2.25%

प्र: A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and back. What is the total distance traveled by the man ? 2344 05b5cc6d7e4d2b4197774e728

उत्तर : 3. "5.76 kms" व्याख्या :Answer: C) 5.76 kms Explanation: Speed in still water = 6 kmph Stream speed = 1.2 kmph Down stream = 7.2 kmph Up Stream = 4.8 kmph x/7.2 + x/4.8 = 1 x = 2.88 Total Distance = 2.88 x 2 = 5.76 kms

प्र: How many minutes does a watch lose per day, if its hands coincide every 64 minutes ? 1196 05b5cc6d7e4d2b4197774e714

उत्तर : 2. "32 8/11 min" व्याख्या :Answer: B) 32 8/11 min Explanation: 55 min. spaces are covered in 60 min. 60 min. spaces are covered in min. = min. Loss in 64 min. = min. Loss in 24 hrs = min. = min.

प्र: Find the least number by which 175760 be divided to make it a perfect cube. 3858 05b5cc6d7e4d2b4197774e70f

उत्तर : 2. "10" व्याख्या :Answer: B) 10 Explanation: 175760 =2³ x 2 x 5 x 13³= 2³ x 2 x 5 x 13³ To make perfect cube, it must be divided by 2 x 5 = 10

प्र: How many four digit even numbers can be formed using the digits {2, 7, 5, 3, 9, 1} ? 2517 05b5cc6d7e4d2b4197774e705

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: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other ? 1865 0

प्र: How many degrees will the minute hand move, in the same time in which the second hand move 4800 ? 6220 0

उत्तर : 1. "80 deg"
व्याख्या :
Answer: A) 80 deg Explanation: As minute hand covers, 60 degrees Minute hand covers 4800/60 = 80°

प्र: P alone can complete a piece of work in 6 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together ? 2854 0

प्र: If a trader sold two cars each at Rs. 404415 and gains 15% on the first and loses 15% on the second, then his profit or loss percent on the whole is ? 1957 0

उत्तर : 4. "2.25 %"
व्याख्या :
Answer: D) 2.25 % Explanation: SP of each car is Rs. 404415, he gains 15% on first car and losses 15% on second car. In this case, there will be loss and percentage of loss is given by = [(profit%)(loss%)]/100 = (15)(15)/100 % = 2.25%

प्र: A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and back. What is the total distance traveled by the man ? 2344 0

उत्तर : 3. "5.76 kms"
व्याख्या :
Answer: C) 5.76 kms Explanation: Speed in still water = 6 kmph Stream speed = 1.2 kmph Down stream = 7.2 kmph Up Stream = 4.8 kmph x/7.2 + x/4.8 = 1 x = 2.88 Total Distance = 2.88 x 2 = 5.76 kms

प्र: How many minutes does a watch lose per day, if its hands coincide every 64 minutes ? 1196 0

उत्तर : 2. "32 8/11 min"
व्याख्या :
Answer: B) 32 8/11 min Explanation: 55 min. spaces are covered in 60 min. 60 min. spaces are covered in min. = min. Loss in 64 min. = min. Loss in 24 hrs = min. = min.

प्र: Find the least number by which 175760 be divided to make it a perfect cube. 3858 0

उत्तर : 2. "10"
व्याख्या :
Answer: B) 10 Explanation: 175760 =2³ x 2 x 5 x 13³= 2³ x 2 x 5 x 13³ To make perfect cube, it must be divided by 2 x 5 = 10

प्र: How many four digit even numbers can be formed using the digits {2, 7, 5, 3, 9, 1} ? 2517 0