Ku dhammee jumlada soo socota xulashada ugu fiican: Sidee baan u ilaalin karaa in rinjiga uu ka baxo rooggayga markaan rinjiyeynayo saldhigyadayda?  Doorashooyinka - Ku duub 2 in. cajalad duuban oo ballaaran si geeskeeda sare uu ugu dhow 20 in. ka sareeyo rooga saaran saqafka. Fiidiyowgu waa inuu si fudud ugu fadhiyaa salka si uusan u xidhnayn. Ka dibna hoos ugu riix geeska saxanka, ugu horeyn farahaaga, kaddibna mindi ballaadhan. Si taxadar leh uga saar xarigga kadib marka uu rinjiga qalalo. - Ku duub 2 in. cajalad duub ballaaran si ay geeskeeda sare u taagan tahay 1/2 in. ka sarreysa rooga saqafka. Fiidiyowgu waa inuu si fudud ugu fadhiyaa salka si uusan u xidhnayn. Ka dibna hoos ugu riix geeska saxanka, ugu horeyn farahaaga, kaddibna mindi ballaadhan. Si taxadar leh uga saar xarigga kadib marka uu rinjiga qalalo.  Jawaab:
Ku duub 2 in. cajalad duub ballaaran si ay geeskeeda sare u taagan tahay qiyaastii 1/2 in. dusha sare ee rooga ku yaal salka. Fiidiyowgu waa inuu si fudud ugu fadhiyaa salka si uusan u xidhnayn. Ka dibna hoos ugu riix geeska saxanka, ugu horeyn farahaaga, kaddibna mindi ballaadhan. Si taxadar leh uga saar xarigga kadib marka uu rinjiga qalalo.