Answer :
Step-by-step explanation:
5/6 hours per block.
12 blocks take then
12 × 5/6 = 2×5 = 10 hours
plus 2 1/2 = 2.5 hours is
10 + 2 1/2 = 12 1/2 hours
Step-by-step explanation:
5/6 hours per block.
12 blocks take then
12 × 5/6 = 2×5 = 10 hours
plus 2 1/2 = 2.5 hours is
10 + 2 1/2 = 12 1/2 hours