Math, asked by akshin0105, 11 months ago

The average of 13 results is 70. The average of
first seven is 65 and that of the last seven is 75,
the seventh result is ?​

Answers

Answered by shashikant40
3

Step-by-step explanation:

total results of 13 =13×70

=910

total results of first seven=7×65

= 455

last seven results=7×75. =525

7th results=525+455-910

70

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