Question
Sam took 1 hr 30 min to paint a tv console and 40 min less to paint a cabinet. He completed painting the tv console and the cabinet at 9.10 a.m. At what time did he start painting?
2 m

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Sam took 1 hr 30 min to paint a tv console and 40 min less to paint a cabinet. He completed painting the tv console and the cabinet at 9.10 a.m. At what time did he start painting?