Question
Sabrina, Jane and Irene collected some balls. Sabrina had thrice as many balls as Jane, and Jane had 7 more balls than Irene. If they had a total of 168 balls, how many less balls did Jane have than Sabrina?
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Sabrina, Jane and Irene collected some balls. Sabrina had thrice as many balls as Jane, and Jane had 7 more balls than Irene. If they had a total of 168 balls, how many less balls did Jane have than Sabrina?