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Para resolver esse problema, vamos utilizar uma equação para encontrar a diferença entre as quantias que Gabriela e Heloisa possuem. Vamos chamar a quantia que Heloisa possui de "x". Sabemos que Gabriela possui 21/25 dessa quantia, ou seja, (21/25) * x. Após receberem R$ 20,00 cada uma, Gabriela passou a ter o correspondente a 22/25 da quantia de Heloisa. Portanto, temos a seguinte equação: (21/25) * x + 20 = (22/25) * x Agora, vamos resolver essa equação: (21/25) * x + 20 = (22/25) * x 21x/25 + 20 = 22x/25 21x + 500 = 22x 500 = 22x - 21x 500 = x Portanto, Heloisa possui R$ 500,00. Agora, para encontrar a diferença entre as quantias que elas possuem, basta subtrair a quantia de Gabriela da quantia de Heloisa: 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - (21/25) * 500 = 500 - (21/25) * 500 500 - 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