Answer
Find out the how much did Sheila have at first .
To proof
Let us assume that the original amount of money be x .
As given
Sheila went shopping and spent $120 on a coat.
Than
money sheila has = x - 120
@@MATH_TOKEN_0@@
@@MATH_TOKEN_1@@
Than the equation becomes
@@MATH_TOKEN_2@@
L.C.M of (5,3) = 15
@@MATH_TOKEN_3@@
solving
600 +13x = 15x
600 = 15x - 13x
600 = 2x
@@MATH_TOKEN_4@@
x = $300
The shelia have money be $300 .
Hence proved
