Find the missing number: 10000, 11000, 9900, 10890, 9801, ___?
সমাধান
সঠিক উত্তর: Option B
10000=10000+(10000×0.10)=11000;
11000=11000-(11000×0.10)=9900;
9900=9900+(9900×0.10)=10890;
10890=10890-(10890×0.10)=9801;
9801=9801+(9801×0.10)=10781.
So, the required missing number=10781