Question

Mahima sold two watches for Rs 990 is if she gained 10% on one and loss 10% on one what is hundred gain or loss percent

Answer 1

Solutions :-


We have,
Mahima sells two watches for Rs 990 each


Find the cost price of one watch at gain of 10% :-

C.P = (S.P × 100)/(100 + gain)
= (990 × 100)/(100 + 10)
= 99000/110
= 900


Find the cost price of other watch at loss of 10% :-

C.P = (S.P × 100)/(100 - loss)
= (990 × 100)/(100 - 10)
= 99000/90
= 1100


Now,
We have,

Selling price of two watch = Rs (990 + 990) = Rs 1980
Cost price of two watch = Rs (900 + 1100) = Rs 2000


Cost Price > Selling price


Loss = C.P - S.P
= Rs (2000 - 1980)
= Rs 20


Loss % = (loss × 100)/ C.P %
= (20 × 100)/2000 %
= 2000/2000 %
= 1 %



Answer : His loss percentage in the whole transaction = 1 %