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The average of 18 numbers is 37.5. If si...

The average of 18 numbers is 37.5. If six numbers of average x are added to them, then the average of all the numbers increases by one. The value of x is :
18 संख्याओं का औसत 37.5 है | यदि औसत x वाली छः संख्याओं को उनमें जोड़ा जाए, तो इन सभी संख्याओं का औसत एक से बढ़ जाता है | x का मान है :

A

40

B

41.5

C

42

D

38.5

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The average of five consecutive even numbers is M. If the next five even numbers are also included, the average of ten numbers will be: पाँच लगातार सम संख्याओं का औसत M है | यदि अगली पाँच सम संख्याओं को भी शामिल कर लिय जाए, तो दस संख्याओं का औसत कितना होगा ?

The average of a few numbers is 48. If 75% of the numbers are increased by 4 each and the rest are decreased by 6 each, then what is the average of the numbers, so obtained? कुछ संख्याओं का औसत 48 है | यदि 75% संख्याओं को 4 से बढ़ा दिया जाता है और शेष संख्याओं को 6 से कम कर दिया जाता है, तो इस प्रकार इन संख्याओं का प्राप्त होने वाला औसत होगा :

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