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Sabrina received a number of a text messages on her mobile phone. 5/9 of them were from her colleagues , 2/7 of them were from her family members and 1/5 of the remaining text messages were from her friend, Teri.

 

There were a total of 371 text messages from her colleagues and her family members. How many test messages did Sabrina receive from Teri?

 Sep 14, 2021
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Sabrina received total 371 text messages

             5/9 of them from Colleges

             2/7 of them from family member

             Total text messages from Colleges and

             family member = \( ({5 \over 9} + {2 \over 5 })371\)

                                      =\( ({35 + 18\over 63})371\)

                                      =\(({53 \over 63}) 371 = 312 * 11\)

            Remaining texts as 371 - 312

                                          = 59
    She got 1/3 of remaining texts from Teri

                  i.e, 59 * 1/5 = 11.8 ~ 12

                 She got 12 messages from Teri.

 Dec 4, 2021

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