Question

ganesh sells two chairs for 800 each gain 20% on one and lose 20% on other find his gain or loss % in the entire transaction​

Answer 1

He sold two chairs = Rs.800

%change = a + b + ab / 100

let ,a = 20(gain) ,b = - 20(lose)

% change =20 - 20 + 20( - 20 ) / 100

%change = - 400/ 100 = - 4% ( lose )

hence, he faced loss of 4 %