6 * 55 = 330 minutes
Add the time he read the first five days. Subtract the sum from 330 to find how long he needs to read the sixth day.
Lawrence records the number of minutes he reads each day show below
Day 1: 75 mins
Day 2: 30 mins
Day 3: 25 mins
Day 4: 50 mins
Day 5: 80 mins
How many minutes must Lawrence read on the sixth dat of have mean of 55 minutes read for the 6 day?
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1 answer