Problema Solution
One necklace can be completed in 3 2/7 minutes, and a bracelet takes 2 1/2 minutes. Find the total time that it takes to complete 20 necklaces and 31 bracelets. Please enter answer as a reduced fraction, possibly with a mixed part.
Answer provided by our tutors
time to complete 20 necklaces:
20 * 3 2/7 = 60 40/7 = 65 5/7
time to complete 31 bracelets:
31 * 2 1/2 = 62 31/2 = 77 1/2
1/2 +5/7 = (7+10)/14 = 1 7/14
total time taken:
65 5/7 + 77 1/2 = 143 7/14
it will take 143 7/14 minutes to complete 20 necklaces and 31 bracelets