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Question

Q. The average weight of a wrestling team of 20 persons is 52. Rahul,who weighs 50kg, left his wrestling team and a new person was substituted for his place and the new average increased by 1kg. What is the weight of the new person?

Q. 20 व्यक्तियों की एक कुश्ती टीम का औसत वजन 52 है।राहुल जिसका वजन 50 किलोग्राम है ने अपनी कुश्ती टीम को छोड़ दिया और एक नए व्यक्ति को उसकी जगह चुना गया जिससे टीम का औसत वजन 1 किलोग्राम बढ़ गया। नए व्यक्ति का वजन क्या है?


A

70kg
70 किलोग्राम
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B

55kg
55 किलोग्राम
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C

60kg
60 किलोग्राम
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D

75kg
75 किलोग्राम
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Solution

The correct option is A
70kg
70 किलोग्राम

Weight of the new person = Weight of the person who went away + No. of person x difference in average weight.

=50+20×1=70

नए व्यक्ति का वजन = जो व्यक्ति चला गया उसका वजन + व्यक्ति की संख्या x औसत वजन में अंतर

=50+20×1=70


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