Word problem solver

Question

Teresa, Carlos and David have a total of $68 in their wallets. Carlos has 3 times what David has. Teresa has $7 less than David. How much does each have?

Answer 1

Let D = David's amount

C = Carlos' amount = 3D

T = Teresa's amount = D-7

Then

D + 3D + D - 7 = 68 or 5D = 75 and then D = 15

So

David has $15

Carlos has $45

Teresa has $8