Question

the rate of sugar was increased by 25 percent and as a esult the sale decreased by 15 percent what will be the overall effect on profit or loss in terms of percentage ​

Answer 1

Answer:

let the rate of sugar was 100 Rs/Kg

on selling 100 Kg of sugar, we get = 100 × 100 = 10000 Rs  

 

it is given that now, rate of sugar was increased by 25%

then, rate of sugar = 100 +  25 = 125 Rs/Kg

and sale decreased by 15 % ,

then weight of sugar was sold = 100 - 15 = 85 Kg

 now, we get = 125 × 85 = 10625 Rs  

here, you can see that, increment of Rs = 625  

so, % increment = increment/intial amount × 100

                         = 625/10000 × 100 = 6.25 %

METHOD 2  

     increment (x ) = + 25%

     decrement ( y) = - 15%

now, % change = x + y + xy/100

                        = 25 - 15 + 25×-15/100

                        = 10 - 3.75 = 6.25 % ,

here percentage is positive so, there will be profit 6.25%