Question
Cole has $7 in his savings box and Vaidev has $2 in his. Cole adds $1 to his savings box each day and Vaidev adds $4 to his each day. On which day will Vaidev’s savings be twice of Cole’s?
4 m

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Cole has $7 in his savings box and Vaidev has $2 in his. Cole adds $1 to his savings box each day and Vaidev adds $4 to his each day. On which day will Vaidev’s savings be twice of Cole’s?