2020 GCE Geometric Progression exam question

[@chinyamasamakayi7456]

thank you sir for the good job you are doing here on TH-cam, I'm a GCE candidate of this year

[@jacobsichambaonlinemath5090]

Okay you are welcome

[@animeguy3853]

Did you pass?

[@CharlesKunda-gf2tb]

thank sir very much for job you done teach G P

[@wisonsiame2432]

😃😃nicely explained 👌

[@naluchamubita9881]

Great teaching

[@mapesachongo5363]

Thank you so much sir

[@howamonde-lv9gh]

Fantastic mathematician

[@Joycekasomamwape]

This so incredible sir

[@gracemulenga2183]

How do you know if r is less than one or greater than one.

[@JohnNgoma-lq1wd]

Nice question

[@sitakwasitakwa9798]

Why didn't you use this formula:Sn=a(r^n-1)÷r-1

[@RhodiaMundenda]

Thanks sir I have understood

[@EsfordMoono]

Thank you for this job

[@JacksongreyMashingo-pj5op]

U are helping sir

[@MushiliHildah]

Thank sir I have understood

[@paxkunda2280]

Why were you finding the same of 2 terms instead 4

[@jacobsichambaonlinemath5090]

It's the procedure

[@MajoryNkandu-h5r]

Thank you sir cause this questions almost killed me in an exam

[@kelvinchijimo2466]

Sir how did you find the 20?

[@MwapeIlunga-d1d]

Thank you 😊 Sir

[@Joycekasomamwape]

Thank you very much sir

[@terryngenda]

thanks sir😊

[@vivixxd7015]

Can u kindly go through another paper just like this one?

[@jacobsichambaonlinemath5090]

Sure

[@GoodsonNshimbi]

Okay this is crazy mathematics 😅🙌

[@LeornardHolo]

Am not satisfied with the answer

[@JazzyKid-x6p]

Sir I can't understand why using 2 term

[@elijahmwananduba9101]

Thank you sir

[@lacksonmilambo5168]

You are too kind

[@jacobsichambaonlinemath5090]

Thanks so much

[@acksonlevyphiri7842]

Biology paper 2 2015 internal

[@jacobsichambaonlinemath5090]

Ok

[@kaumbamartha]

Why 2

[@juvomulenga8664]

Hello

[@jacobsichambaonlinemath5090]

Hello

[@elijahmwananduba9101]

Thank you sir

[@temboblessings8606]

Thank you sir