BILL CAN HAMMER 20 NAILS IN 6 MINUTES. JEFF CAN DO THE SAME JOB IN ONLY 5 MINUTES. HOW LONG WILL IT TAKE THEM TO FINNISH IF BILL HAMMERS THE FIRST 5 NAILS, THEN JEFF HAMMERS FOR 3 MINUTES, THEN BILL FINISHES

BILL CAN HAMMER 20 NAILS IN 6 MINUTES. JEFF CAN DO THE SAME JOB IN ONLY 5 MINUTES. HOW LONG WILL IT TAKE THEM TO FINNISH IF BILL HAMMERS THE FIRST 5 NAILS, THEN JEFF HAMMERS FOR 3 MINUTES, THEN BILL FINISHES THE JOB?

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BILL CAN HAMMER 20 NAILS IN 6 MINUTES. JEFF CAN DO THE SAME JOB IN ONLY 5 MINUTES. HOW LONG WILL IT TAKE THEM TO FINNISH IF BILL HAMMERS THE FIRST 5 NAILS, THEN JEFF HAMMERS FOR…

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