David's mass is 5kg less than john's, who in turn is 8kg lighter than paul. if their total mass is 197kg. how heavy is each person.

Question

Mathematics

Jaydon Griffith

14 December, 00:36

David's mass is 5kg less than john's, who in turn is 8kg lighter than paul. if their total mass is 197kg. how heavy is each person.

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Answers (1)

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Randall Wong · Answer 1

Ok so we know Davids is 5 less than johns x-5

Johns is 8 lighter than paul x-8

combine x-5 + x-8 = 197

2x - 13 = 197

2x = 210

x = 105

lets check it. (105-5) + (105 - 8) = 197