The average of 6 numbers is 45. The average of the first four numbers is 40, and the fifth number is 50. What is the sixth number?
The average of 6 numbers is 45. The average of the first four numbers is 40, and the fifth number is 50. What is the sixth number?
6 संख्याओं का औसत 45 है। पहली चार संख्याओं का औसत 40 है, और पांचवीं संख्या 50 है।छठी संख्या क्या हैं?
Detailed Solution & Logic
Correct Answer:
60
average of 6 numbers is 45
$ 45\times 6$ =270
first four numbers is 40
$ 40\times 4$ =160
270 - 160 = 110
6th = 110 - 50 =60
छठी संख्या = 60
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