MathDB
2021 Spring LMT Division A Problem 22, B Problem 23

Source:

January 22, 2022
algebra

Problem Statement

A Haiku is a Japanese poem of seventeen syllables, in three lines of five, seven, and five.
Ada has been told To write down five haikus plus Two more every hour. Such that she needs to Write down five in the first hour Seven, nine, so on. Ada has so far Forty haikus and writes down Seven every hour. At which hour after She begins will she not have Enough haikus done?
Proposed by Ada Tsui