SOLUTION: A plant grows 1.67 cm in its first week. Each week it grows by 2% more than it did the week before. By how much does it grow in twenty weeks, including the first week?

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: A plant grows 1.67 cm in its first week. Each week it grows by 2% more than it did the week before. By how much does it grow in twenty weeks, including the first week?       Log On

It is the sum of the first 20 terms of the geometric progression

with the first term of 1.67 cm and the common ratio of 1.02



    Sum =  = 40.58 cm.      ANSWER