Question
Kimberly took 1 h 30 min to make a candle. Olivia took 30 min less time than Kimberly while Abi took 30 min longer that Olivia to make a candle. How long did Abi take to make a candle? Express your answer in h and min.
4 m

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Kimberly took 1 h 30 min to make a candle. Olivia took 30 min less time than Kimberly while Abi took 30 min longer that Olivia to make a candle. How long did Abi take to make a candle? Express your answer in h and min.