0000:00:00:00:00Start12Number 12ExplanationTo build a house, a contractor needs 333333 workers for 212121 days. If only 141414 workers arrive, how long will they take to complete the job?484848 days48.548.548.5 days494949 days49.549.549.5 days505050 days
12Number 12ExplanationTo build a house, a contractor needs 333333 workers for 212121 days. If only 141414 workers arrive, how long will they take to complete the job?484848 days48.548.548.5 days494949 days49.549.549.5 days505050 days