Question

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?

Answer 1

5/9 + 2/7 = 53/63
53/63 x = 371
x = 441

1/5 * 10/63 = 2/63
2/63 * 441 = 14 from Teri