Arif incurred a loss of 25% by selling a used mobile phone set at taka How much could he gain/loss by selling it at 2,200 taka?
সমাধান
সঠিক উত্তর: Option C
25% loss means 75% of the original price.
75% = 1500
100% = 1500*100/75 = 2000 tk
Now,
2000 tk = 100%
then, 2200 tk = 100*2200/2000
= 110%
Now, gain is = 110 - 100 = 10%
