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Question-8858




Question Number 8858 by tawakalitu last updated on 01/Nov/16
Answered by sandy_suhendra last updated on 03/Nov/16
1st year he got=U_1 =122,000  2nd year he got=122,800  3rd year he got=123,600  .  .  .  20th year he got=U_1 +19d=122,000+19×800=137,200  so after 20 years he got=((20)/2)×(122,000+137,200)=2,592,000
$$\mathrm{1st}\:\mathrm{year}\:\mathrm{he}\:\mathrm{got}=\mathrm{U}_{\mathrm{1}} =\mathrm{122},\mathrm{000} \\ $$$$\mathrm{2nd}\:\mathrm{year}\:\mathrm{he}\:\mathrm{got}=\mathrm{122},\mathrm{800} \\ $$$$\mathrm{3rd}\:\mathrm{year}\:\mathrm{he}\:\mathrm{got}=\mathrm{123},\mathrm{600} \\ $$$$. \\ $$$$. \\ $$$$. \\ $$$$\mathrm{20th}\:\mathrm{year}\:\mathrm{he}\:\mathrm{got}=\mathrm{U}_{\mathrm{1}} +\mathrm{19d}=\mathrm{122},\mathrm{000}+\mathrm{19}×\mathrm{800}=\mathrm{137},\mathrm{200} \\ $$$$\mathrm{so}\:\mathrm{after}\:\mathrm{20}\:\mathrm{years}\:\mathrm{he}\:\mathrm{got}=\frac{\mathrm{20}}{\mathrm{2}}×\left(\mathrm{122},\mathrm{000}+\mathrm{137},\mathrm{200}\right)=\mathrm{2},\mathrm{592},\mathrm{000} \\ $$
Commented by tawakalitu last updated on 03/Nov/16
I really appreciate sir. God bless you.
$$\mathrm{I}\:\mathrm{really}\:\mathrm{appreciate}\:\mathrm{sir}.\:\mathrm{God}\:\mathrm{bless}\:\mathrm{you}. \\ $$

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